what is data size of a transaction?

[LoyceV]

Meanwhile, unless the pool controls nearly half of the entire world's hashpower, the chances that they will solve the next 3 blocks in a row before the rest of the world succesfully solves 3 blocks are very very slim.

This got me curious: how often has it happened? At Bitcoin block data available in CSV format, I have Blockchair.com's guessed_miner data (with 36% Unknown).
I checked (from yesterday's data) how many times a known guessed mining pool mined more than one block in a row:
10 blocks in a row: once.
9 blocks in a row: once.
8 blocks in a row: 4 times.
7 blocks in a row: 13 times.
6 blocks in a row: 60 times.
5 blocks in a row: 234 times.
4 blocks in a row: 1033 times.
3 blocks in a row: 5392 times.
2 blocks in a row: 35045 times.

Code:

occurrence: block-range guessed_miner
10: 308424-308433 GHash.IO
9: 299449-299457 GHash.IO
8: 414125-414132 F2Pool
8: 305003-305010 GHash.IO
8: 303131-303138 GHash.IO
8: 303107-303114 GHash.IO
7: 715912-715918 F2Pool
7: 578401-578407 BTC.com
7: 522022-522028 BTC.com
7: 509782-509788 BTC.com
7: 508731-508737 BTC.com
7: 414688-414694 F2Pool
7: 412349-412355 F2Pool
7: 403771-403777 AntPool
7: 391394-391400 AntPool
7: 349830-349836 AntPool
7: 308180-308186 GHash.IO
7: 305153-305159 GHash.IO
7: 284432-284438 GHash.IO
6: 707977-707982 F2Pool
6: 706455-706460 AntPool
6: 680586-680591 AntPool
6: 658974-658979 F2Pool
6: 630804-630809 F2Pool
6: 630266-630271 F2Pool
6: 525832-525837 BTC.com
6: 524568-524573 AntPool
6: 522065-522070 BTC.com
6: 516800-516805 BTC.com
6: 514250-514255 BTC.com
6: 500800-500805 AntPool
6: 495737-495742 AntPool
6: 480198-480203 AntPool
6: 476916-476921 AntPool
6: 432537-432542 AntPool
6: 419118-419123 BW.COM
6: 414777-414782 F2Pool
6: 410351-410356 F2Pool
6: 409903-409908 AntPool
6: 402257-402262 AntPool
6: 397804-397809 F2Pool
6: 396191-396196 F2Pool
6: 383310-383315 AntPool
6: 383069-383074 F2Pool
6: 373894-373899 AntPool
6: 369377-369382 AntPool
6: 332841-332846 GHash.IO
6: 330193-330198 F2Pool
6: 326306-326311 F2Pool
6: 316569-316574 GHash.IO
6: 316512-316517 GHash.IO
6: 314858-314863 GHash.IO
6: 311072-311077 GHash.IO
6: 308892-308897 GHash.IO
6: 307634-307639 GHash.IO
6: 307509-307514 GHash.IO
6: 306597-306602 GHash.IO
6: 306505-306510 GHash.IO
6: 305487-305492 GHash.IO
6: 305479-305484 GHash.IO
6: 304605-304610 GHash.IO
6: 303980-303985 GHash.IO
6: 303485-303490 GHash.IO
6: 303152-303157 GHash.IO
6: 302543-302548 GHash.IO
6: 301403-301408 GHash.IO
6: 301356-301361 GHash.IO
6: 294369-294374 GHash.IO
6: 290653-290658 GHash.IO
6: 286954-286959 Eligius
6: 286150-286155 GHash.IO
6: 281134-281139 GHash.IO
6: 278970-278975 GHash.IO
6: 278310-278315 GHash.IO
6: 276090-276095 GHash.IO
6: 273238-273243 GHash.IO
6: 261362-261367 GHash.IO
6: 260899-260904 50BTC
6: 224466-224471 OzCoin
5: 710573-710577 ViaBTC
5: 704378-704382 F2Pool
5: 704051-704055 AntPool
5: 697769-697773 AntPool
5: 686618-686622 Poolin
5: 674320-674324 F2Pool
5: 671680-671684 F2Pool
5: 664892-664896 Binance
5: 662149-662153 F2Pool
5: 655986-655990 F2Pool
5: 645666-645670 F2Pool
5: 634068-634072 F2Pool
5: 624578-624582 F2Pool
5: 621569-621573 F2Pool
5: 617204-617208 Poolin
5: 613750-613754 BTC.com
5: 612276-612280 F2Pool
5: 611449-611453 F2Pool
5: 604445-604449 BTC.com
5: 601322-601326 F2Pool
5: 597549-597553 F2Pool
5: 588024-588028 BTC.com
5: 587176-587180 BTC.com
5: 585644-585648 BTC.com
5: 583194-583198 BTC.com
5: 565462-565466 F2Pool
5: 564965-564969 AntPool
5: 553993-553997 SlushPool
5: 545505-545509 BTC.com
5: 545270-545274 F2Pool
5: 541302-541306 BTC.com
5: 540394-540398 SlushPool
5: 536337-536341 AntPool
5: 535142-535146 BTC.com
5: 529863-529867 F2Pool
5: 529572-529576 BTC.com
5: 529520-529524 BTC.com
5: 527215-527219 BTC.com
5: 518347-518351 BTC.com
5: 515563-515567 BTC.TOP
5: 512686-512690 BTC.com
5: 512323-512327 BTC.com
5: 510842-510846 BTC.com
5: 510656-510660 BTC.com
5: 510461-510465 BTC.com
5: 509274-509278 BTC.com
5: 507117-507121 BTC.com
5: 503611-503615 BTC.com
5: 502337-502341 AntPool
5: 499301-499305 AntPool
5: 498580-498584 SlushPool
5: 498304-498308 BTC.com
5: 497630-497634 BTC.com
5: 494866-494870 ViaBTC
5: 489575-489579 AntPool
5: 476752-476756 AntPool
5: 476159-476163 AntPool
5: 473231-473235 BTC.TOP
5: 468672-468676 BTC.TOP
5: 463832-463836 F2Pool
5: 450171-450175 AntPool
5: 448745-448749 AntPool
5: 448564-448568 AntPool
5: 445890-445894 AntPool
5: 445530-445534 AntPool
5: 444662-444666 AntPool
5: 444318-444322 AntPool
5: 440323-440327 AntPool
5: 437032-437036 F2Pool
5: 436685-436689 BW.COM
5: 428491-428495 BW.COM
5: 425865-425869 F2Pool
5: 423331-423335 F2Pool
5: 421067-421071 AntPool
5: 418741-418745 AntPool
5: 418664-418668 F2Pool
5: 418510-418514 F2Pool
5: 417266-417270 F2Pool
5: 416487-416491 F2Pool
5: 415872-415876 AntPool
5: 415151-415155 F2Pool
5: 414825-414829 F2Pool
5: 413884-413888 F2Pool
5: 412838-412842 F2Pool
5: 412178-412182 AntPool
5: 412056-412060 AntPool
5: 411718-411722 F2Pool
5: 411194-411198 F2Pool
5: 410922-410926 AntPool
5: 409897-409901 AntPool
5: 409635-409639 F2Pool
5: 409278-409282 AntPool
5: 408624-408628 AntPool
5: 408308-408312 F2Pool
5: 407627-407631 F2Pool
5: 407206-407210 AntPool
5: 407000-407004 AntPool
5: 406547-406551 AntPool
5: 405426-405430 AntPool
5: 405209-405213 F2Pool
5: 404133-404137 AntPool
5: 403183-403187 AntPool
5: 402677-402681 F2Pool
5: 402625-402629 AntPool
5: 402481-402485 AntPool
5: 401754-401758 F2Pool
5: 400218-400222 AntPool
5: 398530-398534 AntPool
5: 393485-393489 AntPool
5: 393435-393439 AntPool
5: 393102-393106 AntPool
5: 392764-392768 F2Pool
5: 391689-391693 F2Pool
5: 387574-387578 AntPool
5: 386776-386780 F2Pool
5: 386454-386458 F2Pool
5: 385662-385666 F2Pool
5: 384532-384536 F2Pool
5: 382076-382080 BitFury
5: 381855-381859 F2Pool
5: 381439-381443 F2Pool
5: 379132-379136 F2Pool
5: 375885-375889 BitFury
5: 374286-374290 F2Pool
5: 371745-371749 F2Pool
5: 370875-370879 BitFury
5: 369435-369439 F2Pool
5: 367246-367250 AntPool
5: 362535-362539 F2Pool
5: 361702-361706 F2Pool
5: 359438-359442 AntPool
5: 359179-359183 AntPool
5: 357438-357442 F2Pool
5: 352616-352620 F2Pool
5: 350260-350264 BW.COM
5: 350160-350164 F2Pool
5: 350088-350092 F2Pool
5: 348635-348639 F2Pool
5: 338127-338131 F2Pool
5: 336817-336821 F2Pool
5: 336012-336016 F2Pool
5: 333753-333757 F2Pool
5: 333727-333731 F2Pool
5: 332608-332612 F2Pool
5: 331608-331612 F2Pool
5: 330971-330975 F2Pool
5: 329689-329693 F2Pool
5: 328608-328612 F2Pool
5: 328246-328250 GHash.IO
5: 328118-328122 F2Pool
5: 327687-327691 F2Pool
5: 325682-325686 F2Pool
5: 322346-322350 GHash.IO
5: 321006-321010 GHash.IO
5: 320350-320354 F2Pool
5: 317892-317896 F2Pool
5: 316501-316505 GHash.IO
5: 314391-314395 GHash.IO
5: 312959-312963 GHash.IO
5: 312188-312192 GHash.IO
5: 312055-312059 GHash.IO
5: 311481-311485 F2Pool
5: 311393-311397 GHash.IO
5: 311286-311290 GHash.IO
5: 309189-309193 F2Pool
5: 309036-309040 GHash.IO
5: 307798-307802 GHash.IO
5: 307710-307714 GHash.IO
5: 307517-307521 GHash.IO
5: 307121-307125 GHash.IO
5: 307039-307043 GHash.IO
5: 306964-306968 GHash.IO
5: 306457-306461 GHash.IO
5: 306125-306129 GHash.IO
5: 305854-305858 GHash.IO
5: 305420-305424 GHash.IO
5: 305195-305199 GHash.IO
5: 304654-304658 GHash.IO
5: 304587-304591 GHash.IO
5: 304422-304426 GHash.IO
5: 304333-304337 GHash.IO
5: 304194-304198 GHash.IO
5: 304179-304183 GHash.IO
5: 303993-303997 GHash.IO
5: 302970-302974 GHash.IO
5: 302476-302480 GHash.IO
5: 302322-302326 GHash.IO
5: 302036-302040 GHash.IO
5: 302030-302034 GHash.IO
5: 301935-301939 GHash.IO
5: 301681-301685 GHash.IO
5: 299784-299788 GHash.IO
5: 299338-299342 GHash.IO
5: 296778-296782 GHash.IO
5: 296221-296225 GHash.IO
5: 292121-292125 GHash.IO
5: 291994-291998 GHash.IO
5: 290890-290894 GHash.IO
5: 290616-290620 GHash.IO
5: 289528-289532 GHash.IO
5: 289210-289214 GHash.IO
5: 288676-288680 GHash.IO
5: 288574-288578 GHash.IO
5: 288297-288301 GHash.IO
5: 287703-287707 GHash.IO
5: 287459-287463 GHash.IO
5: 286364-286368 GHash.IO
5: 285322-285326 GHash.IO
5: 285191-285195 GHash.IO
5: 285041-285045 GHash.IO
5: 283504-283508 GHash.IO
5: 282057-282061 GHash.IO
5: 280799-280803 GHash.IO
5: 280030-280034 GHash.IO
5: 278163-278167 GHash.IO
5: 276765-276769 GHash.IO
5: 276470-276474 GHash.IO
5: 275408-275412 GHash.IO
5: 274956-274960 GHash.IO
5: 274011-274015 GHash.IO
5: 272628-272632 GHash.IO
5: 272535-272539 GHash.IO
5: 270094-270098 GHash.IO
5: 268471-268475 GHash.IO
5: 267368-267372 GHash.IO
5: 266521-266525 GHash.IO
5: 266257-266261 GHash.IO
5: 264471-264475 GHash.IO
5: 248046-248050 ASICMiner
5: 245294-245298 50BTC
5: 243162-243166 50BTC
5: 241562-241566 50BTC
5: 235774-235778 50BTC
5: 204488-204492 SlushPool
4: 714846-714849 ViaBTC
4: 714711-714714 F2Pool
4: 713378-713381 F2Pool
4: 713042-713045 AntPool
4: 712262-712265 F2Pool
4: 712242-712245 Binance
4: 712237-712240 F2Pool
4: 711304-711307 AntPool
4: 711138-711141 AntPool
4: 709809-709812 AntPool
4: 709256-709259 F2Pool
4: 709003-709006 F2Pool
4: 708635-708638 ViaBTC
4: 707987-707990 F2Pool
4: 707528-707531 AntPool
4: 707190-707193 F2Pool
4: 706859-706862 AntPool
4: 706740-706743 AntPool
4: 706178-706181 AntPool
4: 706123-706126 F2Pool
4: 704484-704487 AntPool
4: 704394-704397 F2Pool
4: 704085-704088 F2Pool
4: 703795-703798 F2Pool
4: 703149-703152 AntPool
4: 702872-702875 Poolin
4: 701708-701711 SlushPool
4: 701662-701665 F2Pool
4: 701346-701349 F2Pool
4: 701335-701338 F2Pool
4: 700200-700203 Poolin
4: 699776-699779 AntPool
4: 698972-698975 AntPool
4: 697658-697661 AntPool
4: 697519-697522 AntPool
4: 697502-697505 AntPool
4: 697246-697249 ViaBTC
4: 697215-697218 AntPool
4: 695474-695477 ViaBTC
4: 694426-694429 AntPool
4: 694221-694224 AntPool
4: 692884-692887 Binance
4: 690030-690033 AntPool
4: 689403-689406 Binance
4: 687914-687917 F2Pool
4: 686306-686309 AntPool
4: 685552-685555 F2Pool
4: 682211-682214 AntPool
4: 681756-681759 AntPool
4: 681677-681680 F2Pool
4: 681388-681391 F2Pool
4: 681382-681385 F2Pool
4: 681074-681077 Huobi
4: 680599-680602 F2Pool
4: 680170-680173 ViaBTC
4: 679851-679854 BTC.com
4: 679341-679344 Binance
4: 679229-679232 ViaBTC
4: 679130-679133 ViaBTC
4: 679104-679107 F2Pool
4: 678327-678330 F2Pool
4: 678260-678263 F2Pool
4: 677855-677858 Poolin
4: 677543-677546 AntPool
4: 677004-677007 AntPool
4: 671923-671926 F2Pool
4: 671225-671228 F2Pool
4: 669869-669872 Huobi
4: 669565-669568 Binance
4: 668915-668918 AntPool
4: 667783-667786 F2Pool
4: 666278-666281 F2Pool
4: 665654-665657 F2Pool
4: 665130-665133 AntPool
4: 664924-664927 Binance
4: 664031-664034 F2Pool
4: 663226-663229 F2Pool
4: 662936-662939 F2Pool
4: 660924-660927 F2Pool
4: 659586-659589 F2Pool
4: 659070-659073 F2Pool
4: 658921-658924 F2Pool
4: 658452-658455 F2Pool
4: 655612-655615 F2Pool
4: 655607-655610 Poolin
4: 654919-654922 Binance
4: 654358-654361 Poolin
4: 653543-653546 Poolin
4: 651729-651732 F2Pool
4: 651289-651292 F2Pool
4: 649961-649964 AntPool
4: 648946-648949 Poolin
4: 648834-648837 Poolin
4: 648599-648602 Poolin
4: 647530-647533 F2Pool
4: 646760-646763 F2Pool
4: 645470-645473 Poolin
4: 645332-645335 F2Pool
4: 644742-644745 F2Pool
4: 643891-643894 Poolin
4: 640613-640616 F2Pool
4: 640252-640255 Poolin
4: 638668-638671 AntPool
4: 638185-638188 BTC.com
4: 638025-638028 F2Pool
4: 637600-637603 Poolin
4: 636260-636263 F2Pool
4: 634958-634961 BTC.com
4: 634565-634568 F2Pool
4: 633728-633731 Poolin
4: 633374-633377 Poolin
4: 633003-633006 F2Pool
4: 632870-632873 BTC.com
4: 632451-632454 F2Pool
4: 631858-631861 Poolin
4: 631556-631559 Poolin
4: 630913-630916 BTC.com
4: 630717-630720 F2Pool
4: 629669-629672 Poolin
4: 629657-629660 F2Pool
4: 629584-629587 F2Pool
4: 629276-629279 F2Pool
4: 628719-628722 F2Pool
4: 626813-626816 F2Pool
4: 625430-625433 BTC.com
4: 624063-624066 F2Pool
4: 623732-623735 F2Pool
4: 623207-623210 Poolin
4: 622320-622323 F2Pool
4: 621354-621357 Poolin
4: 620201-620204 Poolin
4: 618995-618998 AntPool
4: 618976-618979 F2Pool
4: 617780-617783 Poolin
4: 617670-617673 F2Pool
4: 617034-617037 F2Pool
4: 616888-616891 F2Pool
4: 611898-611901 F2Pool
4: 611824-611827 F2Pool
4: 608287-608290 BTC.com
4: 606555-606558 F2Pool
4: 606314-606317 BTC.com
4: 606292-606295 BTC.com
4: 606121-606124 BTC.com
4: 602959-602962 F2Pool
4: 601547-601550 F2Pool
4: 601186-601189 BTC.com
4: 600572-600575 F2Pool
4: 598120-598123 BTC.com
4: 597490-597493 F2Pool
4: 596022-596025 BTC.com
4: 595864-595867 BTC.com
4: 592431-592434 BTC.com
4: 592190-592193 BTC.com
4: 592134-592137 BTC.com
4: 591559-591562 BTC.TOP
4: 591386-591389 BTC.com
4: 590986-590989 BTC.com
4: 590857-590860 BTC.com
4: 590829-590832 BTC.com
4: 589974-589977 F2Pool
4: 589681-589684 BTC.com
4: 589349-589352 BTC.com
4: 588546-588549 BTC.com
4: 587666-587669 AntPool
4: 587080-587083 BTC.com
4: 586614-586617 BTC.com
4: 585091-585094 F2Pool
4: 584579-584582 BTC.com
4: 584285-584288 BTC.com
4: 584225-584228 BTC.com
4: 583287-583290 BTC.com
4: 583237-583240 BTC.com
4: 582823-582826 BTC.com
4: 581945-581948 BTC.com
4: 581715-581718 ViaBTC
4: 580132-580135 BTC.com
4: 579942-579945 F2Pool
4: 579806-579809 SlushPool
4: 578415-578418 BTC.com
4: 577506-577509 BTC.com
4: 577164-577167 BTC.com
4: 576483-576486 BTC.com
4: 573838-573841 BTC.com
4: 573701-573704 AntPool
4: 572927-572930 F2Pool
4: 572609-572612 BitFury
4: 572053-572056 BTC.com
4: 571773-571776 F2Pool
4: 570703-570706 F2Pool
4: 570694-570697 BTC.com
4: 568081-568084 AntPool
4: 567595-567598 F2Pool
4: 566025-566028 BTC.com
4: 563095-563098 BTC.com
4: 563020-563023 BTC.com
4: 562460-562463 ViaBTC
4: 561754-561757 BTC.com
4: 558188-558191 BTC.com
4: 558144-558147 AntPool
4: 557522-557525 SlushPool
4: 555596-555599 BTC.com
4: 554642-554645 BTC.com
4: 554079-554082 BTC.com
4: 552160-552163 SlushPool
4: 552075-552078 BTC.TOP
4: 551899-551902 BTC.com
4: 551850-551853 AntPool
4: 549054-549057 AntPool
4: 547563-547566 AntPool
4: 546291-546294 BTC.com
4: 545841-545844 SlushPool
4: 544999-545002 SlushPool
4: 544438-544441 BTC.com
4: 543185-543188 AntPool
4: 542339-542342 SlushPool
4: 541406-541409 BTC.com
4: 541076-541079 BTC.com
4: 540708-540711 SlushPool
4: 540253-540256 AntPool
4: 540106-540109 BTC.com
4: 539416-539419 AntPool
4: 538699-538702 BTC.com
4: 537884-537887 AntPool
4: 536242-536245 BTC.com
4: 535687-535690 BTC.com
4: 535633-535636 AntPool
4: 535558-535561 BTC.com
4: 535344-535347 BTC.com
4: 535211-535214 BTC.com
4: 534410-534413 AntPool
4: 534023-534026 BTC.com
4: 533448-533451 AntPool
4: 533312-533315 BTC.com
4: 533116-533119 BTC.com
4: 532287-532290 BTC.com
4: 531985-531988 BTC.com
4: 531864-531867 BTC.com
4: 530683-530686 BTC.com
4: 530672-530675 BTC.com
4: 529822-529825 BTC.com
4: 529559-529562 BTC.com
4: 529554-529557 BTC.com
4: 529429-529432 BTC.com
4: 529366-529369 BTC.com
4: 529190-529193 BTC.com
4: 528941-528944 BTC.com
4: 528861-528864 AntPool
4: 528840-528843 BTC.com
4: 528500-528503 BTC.com
4: 528379-528382 BTC.com
4: 528015-528018 BTC.com
4: 527503-527506 BTC.com
4: 527479-527482 BTC.com
4: 527267-527270 BTC.com
4: 527195-527198 BTC.TOP
4: 527090-527093 BTC.com
4: 527084-527087 BTC.com
4: 527049-527052 BTC.com
4: 526961-526964 BTC.com
4: 526486-526489 BTC.com
4: 526037-526040 BTC.com
4: 525964-525967 BTC.com
4: 525467-525470 BTC.com
4: 525299-525302 BTC.com
4: 524991-524994 BTC.com
4: 524756-524759 BTC.com
4: 524666-524669 BTC.com
4: 523833-523836 BTC.com
4: 523615-523618 BTC.com
4: 523450-523453 BTC.com
4: 523360-523363 BTC.com
4: 522982-522985 BTC.com
4: 522893-522896 BTC.com
4: 522827-522830 F2Pool
4: 522545-522548 ViaBTC
4: 522356-522359 BTC.com
4: 522300-522303 BTC.com
4: 522111-522114 BTC.com
4: 521875-521878 ViaBTC
4: 521736-521739 BTC.com
4: 521549-521552 BTC.com
4: 521403-521406 BTC.com
4: 521293-521296 BTC.com
4: 521160-521163 BTC.com
4: 521104-521107 BTC.com
4: 520521-520524 BTC.com
4: 519902-519905 BTC.com
4: 519494-519497 BTC.com
4: 519182-519185 ViaBTC
4: 518202-518205 BTC.com
4: 517648-517651 BTC.com
4: 517628-517631 BTC.com
4: 517297-517300 BTC.com
4: 516737-516740 SlushPool
4: 516414-516417 BTC.com
4: 516381-516384 BTC.com
4: 516156-516159 AntPool
4: 515861-515864 BTC.com
4: 515756-515759 BTC.com
4: 515063-515066 BTC.com
4: 515055-515058 BTC.com
4: 514674-514677 BTC.com
4: 514530-514533 BTC.com
4: 513801-513804 SlushPool
4: 513656-513659 ViaBTC
4: 513310-513313 BTC.com
4: 512793-512796 BTC.com
4: 512538-512541 BTC.com
4: 511902-511905 BTC.com
4: 511884-511887 BTC.com
4: 511740-511743 BTC.com
4: 510216-510219 BTC.com
4: 509959-509962 BTC.com
4: 509851-509854 BTC.com
4: 509655-509658 ViaBTC
4: 509598-509601 BTC.com
4: 509508-509511 BTC.com
4: 509421-509424 BTC.com
4: 509352-509355 BTC.TOP
4: 509314-509317 BTC.com
4: 508655-508658 BTC.com
4: 508051-508054 BTC.com
4: 507737-507740 BTC.com
4: 507584-507587 BTC.com
4: 507529-507532 BTC.com
4: 507061-507064 BTC.com
4: 506827-506830 BTC.com
4: 506755-506758 BTC.com
4: 506187-506190 AntPool
4: 506114-506117 BTC.com
4: 506030-506033 AntPool
4: 505826-505829 BTC.com
4: 505452-505455 AntPool
4: 505328-505331 BTC.com
4: 505252-505255 AntPool
4: 505233-505236 AntPool
4: 505075-505078 AntPool
4: 504770-504773 BTC.com
4: 504699-504702 BTC.TOP
4: 503792-503795 BTC.com
4: 503545-503548 BTC.com
4: 503260-503263 BTC.com
4: 503134-503137 AntPool
4: 503042-503045 BTC.com
4: 502930-502933 BTC.com
4: 501940-501943 AntPool
4: 501046-501049 AntPool
4: 500889-500892 BTC.com
4: 500829-500832 BTC.TOP
4: 499647-499650 BTC.com
4: 498862-498865 ViaBTC
4: 497886-497889 AntPool
4: 497582-497585 BTC.TOP
4: 496985-496988 BTC.com
4: 495879-495882 BTC.com
4: 495680-495683 AntPool
4: 495181-495184 AntPool
4: 494716-494719 BTC.TOP
4: 494692-494695 BTC.com
4: 494420-494423 BTC.com
4: 493779-493782 BTC.com
4: 491815-491818 F2Pool
4: 490504-490507 BTC.TOP
4: 490192-490195 AntPool
4: 489677-489680 ViaBTC
4: 488751-488754 BTC.TOP
4: 487460-487463 ViaBTC
4: 487239-487242 BTC.TOP
4: 487227-487230 BTC.TOP
4: 486489-486492 AntPool
4: 485124-485127 AntPool
4: 485067-485070 ViaBTC
4: 484721-484724 BTC.TOP
4: 484182-484185 F2Pool
4: 482856-482859 BTC.TOP
4: 480715-480718 AntPool
4: 479792-479795 BTC.TOP
4: 478136-478139 AntPool
4: 478121-478124 AntPool
4: 478061-478064 AntPool
4: 477912-477915 AntPool
4: 477530-477533 AntPool
4: 475925-475928 AntPool
4: 475639-475642 AntPool
4: 475338-475341 AntPool
4: 475047-475050 BTC.TOP
4: 474896-474899 AntPool
4: 474581-474584 AntPool
4: 474163-474166 BTC.TOP
4: 474090-474093 AntPool
4: 473896-473899 AntPool
4: 472832-472835 BTC.TOP
4: 469597-469600 AntPool
4: 468705-468708 Bixin
4: 466743-466746 AntPool
4: 465434-465437 AntPool
4: 465062-465065 AntPool
4: 463845-463848 AntPool
4: 463091-463094 AntPool
4: 457735-457738 F2Pool
4: 457368-457371 AntPool
4: 457087-457090 AntPool
4: 452910-452913 AntPool
4: 450684-450687 AntPool
4: 450365-450368 F2Pool
4: 450348-450351 AntPool
4: 449905-449908 AntPool
4: 449773-449776 AntPool
4: 448636-448639 BitFury
4: 447905-447908 F2Pool
4: 447736-447739 AntPool
4: 447251-447254 F2Pool
4: 446548-446551 AntPool
4: 444859-444862 F2Pool
4: 444746-444749 AntPool
4: 444632-444635 AntPool
4: 443846-443849 F2Pool
4: 443728-443731 AntPool
4: 443584-443587 AntPool
4: 443393-443396 AntPool
4: 443355-443358 AntPool
4: 443315-443318 F2Pool
4: 443018-443021 AntPool
4: 441790-441793 BW.COM
4: 441780-441783 AntPool
4: 441666-441669 F2Pool
4: 440852-440855 BW.COM
4: 440809-440812 F2Pool
4: 440716-440719 AntPool
4: 440472-440475 AntPool
4: 439961-439964 AntPool
4: 438978-438981 AntPool
4: 438805-438808 F2Pool
4: 437816-437819 F2Pool
4: 437440-437443 AntPool
4: 436365-436368 AntPool
4: 435752-435755 F2Pool
4: 435525-435528 AntPool
4: 434290-434293 AntPool
4: 434118-434121 AntPool
4: 433935-433938 F2Pool
4: 433686-433689 F2Pool
4: 432871-432874 F2Pool
4: 430463-430466 F2Pool
4: 429732-429735 F2Pool
4: 429468-429471 BitFury
4: 428951-428954 AntPool
4: 427584-427587 AntPool
4: 427071-427074 F2Pool
4: 426940-426943 F2Pool
4: 426890-426893 F2Pool
4: 426195-426198 AntPool
4: 425194-425197 F2Pool
4: 424121-424124 AntPool
4: 423817-423820 AntPool
4: 423740-423743 F2Pool
4: 422506-422509 F2Pool
4: 422422-422425 F2Pool
4: 422400-422403 AntPool
4: 422332-422335 F2Pool
4: 422125-422128 AntPool
4: 421613-421616 BitFury
4: 421597-421600 BitFury
4: 420561-420564 F2Pool
4: 420212-420215 F2Pool
4: 420102-420105 F2Pool
4: 420027-420030 BW.COM
4: 419427-419430 BitFury
4: 419396-419399 BW.COM
4: 419360-419363 F2Pool
4: 419083-419086 AntPool
4: 418910-418913 F2Pool
4: 418710-418713 AntPool
4: 418181-418184 AntPool
4: 418160-418163 AntPool
4: 417249-417252 F2Pool
4: 417000-417003 AntPool
4: 416898-416901 F2Pool
4: 416104-416107 F2Pool
4: 415692-415695 F2Pool
4: 415456-415459 F2Pool
4: 415292-415295 F2Pool
4: 415131-415134 F2Pool
4: 414416-414419 AntPool
4: 414305-414308 AntPool
4: 413915-413918 F2Pool
4: 413010-413013 F2Pool
4: 412581-412584 AntPool
4: 412340-412343 F2Pool
4: 412075-412078 F2Pool
4: 411981-411984 F2Pool
4: 411927-411930 F2Pool
4: 411647-411650 AntPool
4: 411612-411615 AntPool
4: 411575-411578 AntPool
4: 411565-411568 AntPool
4: 411165-411168 AntPool
4: 411053-411056 AntPool
4: 410829-410832 F2Pool
4: 410666-410669 AntPool
4: 410164-410167 AntPool
4: 409689-409692 F2Pool
4: 409430-409433 AntPool
4: 409381-409384 AntPool
4: 409297-409300 AntPool
4: 409174-409177 AntPool
4: 409027-409030 AntPool
4: 408040-408043 AntPool
4: 407930-407933 AntPool
4: 407869-407872 AntPool
4: 406770-406773 AntPool
4: 406407-406410 AntPool
4: 406390-406393 AntPool
4: 406333-406336 AntPool
4: 406233-406236 AntPool
4: 406216-406219 F2Pool
4: 406031-406034 F2Pool
4: 406011-406014 AntPool
4: 405973-405976 F2Pool
4: 405943-405946 F2Pool
4: 405541-405544 AntPool
4: 405235-405238 AntPool
4: 405193-405196 AntPool
4: 404918-404921 AntPool
4: 404510-404513 AntPool
4: 404271-404274 AntPool
4: 404256-404259 AntPool
4: 403838-403841 F2Pool
4: 403832-403835 AntPool
4: 403433-403436 AntPool
4: 403245-403248 AntPool
4: 403066-403069 AntPool
4: 402864-402867 AntPool
4: 402690-402693 F2Pool
4: 402213-402216 AntPool
4: 401668-401671 AntPool
4: 401646-401649 F2Pool
4: 400941-400944 AntPool
4: 400875-400878 F2Pool
4: 400869-400872 F2Pool
4: 400105-400108 AntPool
4: 399896-399899 AntPool
4: 399423-399426 F2Pool
4: 398715-398718 F2Pool
4: 398689-398692 F2Pool
4: 398671-398674 AntPool
4: 398656-398659 AntPool
4: 398431-398434 BitFury
4: 398213-398216 AntPool
4: 397913-397916 AntPool
4: 397561-397564 AntPool
4: 396738-396741 F2Pool
4: 396616-396619 AntPool
4: 395365-395368 F2Pool
4: 395320-395323 BitFury
4: 395074-395077 AntPool
4: 394515-394518 F2Pool
4: 394341-394344 F2Pool
4: 394125-394128 AntPool
4: 394032-394035 AntPool
4: 393857-393860 AntPool
4: 393470-393473 F2Pool
4: 393276-393279 AntPool
4: 393092-393095 F2Pool
4: 392890-392893 AntPool
4: 392875-392878 F2Pool
4: 392663-392666 F2Pool
4: 392588-392591 AntPool
4: 392032-392035 F2Pool
4: 392002-392005 F2Pool
4: 391985-391988 F2Pool
4: 391635-391638 BitFury
4: 391043-391046 AntPool
4: 391005-391008 AntPool
4: 390973-390976 F2Pool
4: 390684-390687 BitFury
4: 390672-390675 F2Pool
4: 390563-390566 AntPool
4: 390391-390394 AntPool
4: 389853-389856 F2Pool
4: 389703-389706 F2Pool
4: 389321-389324 F2Pool
4: 388959-388962 F2Pool
4: 388705-388708 AntPool
4: 387617-387620 F2Pool
4: 387451-387454 F2Pool
4: 387073-387076 F2Pool
4: 386439-386442 AntPool
4: 386411-386414 BW.COM
4: 385748-385751 AntPool
4: 385509-385512 F2Pool
4: 385479-385482 AntPool
4: 385088-385091 AntPool
4: 384850-384853 F2Pool
4: 384429-384432 F2Pool
4: 384348-384351 AntPool
4: 384269-384272 F2Pool
4: 384160-384163 AntPool
4: 382766-382769 SlushPool
4: 382441-382444 F2Pool
4: 382427-382430 AntPool
4: 381187-381190 F2Pool
4: 380922-380925 F2Pool
4: 380828-380831 F2Pool
4: 380678-380681 AntPool
4: 380455-380458 AntPool
4: 380418-380421 F2Pool
4: 380232-380235 F2Pool
4: 379951-379954 AntPool
4: 379683-379686 AntPool
4: 378371-378374 F2Pool
4: 378322-378325 BitFury
4: 378120-378123 AntPool
4: 378052-378055 BitFury
4: 377621-377624 BitFury
4: 377358-377361 F2Pool
4: 377089-377092 AntPool
4: 376659-376662 F2Pool
4: 375758-375761 F2Pool
4: 375653-375656 F2Pool
4: 375606-375609 AntPool
4: 374163-374166 AntPool
4: 374020-374023 F2Pool
4: 373212-373215 AntPool
4: 372313-372316 SlushPool
4: 372297-372300 BitFury
4: 371411-371414 BitFury
4: 371331-371334 AntPool
4: 371272-371275 F2Pool
4: 371173-371176 F2Pool
4: 370797-370800 F2Pool
4: 369265-369268 SlushPool
4: 367389-367392 AntPool
4: 367240-367243 AntPool
4: 367192-367195 BitFury
4: 366713-366716 BitFury
4: 366440-366443 BitFury
4: 365821-365824 AntPool
4: 365569-365572 BitFury
4: 365495-365498 BW.COM
4: 365084-365087 AntPool
4: 365013-365016 F2Pool
4: 364401-364404 AntPool
4: 363851-363854 AntPool
4: 363581-363584 AntPool
4: 363419-363422 F2Pool
4: 363217-363220 AntPool
4: 363070-363073 F2Pool
4: 362547-362550 F2Pool
4: 361904-361907 AntPool
4: 359101-359104 AntPool
4: 359063-359066 AntPool
4: 359008-359011 F2Pool
4: 358726-358729 F2Pool
4: 357534-357537 F2Pool
4: 357203-357206 AntPool
4: 356701-356704 AntPool
4: 356413-356416 AntPool
4: 355823-355826 F2Pool
4: 355222-355225 F2Pool
4: 355111-355114 F2Pool
4: 354301-354304 AntPool
4: 354004-354007 BitFury
4: 353974-353977 F2Pool
4: 353851-353854 F2Pool
4: 353271-353274 BitFury
4: 352740-352743 AntPool
4: 352520-352523 F2Pool
4: 352131-352134 F2Pool
4: 351547-351550 F2Pool
4: 351475-351478 F2Pool
4: 350080-350083 BW.COM
4: 349977-349980 AntPool
4: 349737-349740 AntPool
4: 349521-349524 AntPool
4: 349012-349015 AntPool
4: 348940-348943 F2Pool
4: 348401-348404 F2Pool
4: 347715-347718 AntPool
4: 347176-347179 F2Pool
4: 345698-345701 AntPool
4: 345603-345606 F2Pool
4: 340956-340959 AntPool
4: 340914-340917 F2Pool
4: 337035-337038 F2Pool
4: 336777-336780 F2Pool
4: 336540-336543 F2Pool
4: 335045-335048 F2Pool
4: 334627-334630 AntPool
4: 333122-333125 GHash.IO
4: 332330-332333 F2Pool
4: 332293-332296 F2Pool
4: 331493-331496 GHash.IO
4: 331214-331217 F2Pool
4: 330646-330649 GHash.IO
4: 330492-330495 F2Pool
4: 330479-330482 F2Pool
4: 329786-329789 F2Pool
4: 329331-329334 F2Pool
4: 329266-329269 F2Pool
4: 328290-328293 F2Pool
4: 327932-327935 F2Pool
4: 327841-327844 F2Pool
4: 327500-327503 F2Pool
4: 327163-327166 F2Pool
4: 326593-326596 GHash.IO
4: 326204-326207 GHash.IO
4: 325927-325930 GHash.IO
4: 325790-325793 F2Pool
4: 325331-325334 GHash.IO
4: 325314-325317 GHash.IO
4: 325224-325227 GHash.IO
4: 324772-324775 F2Pool
4: 324757-324760 F2Pool
4: 324201-324204 GHash.IO
4: 323825-323828 F2Pool
4: 323764-323767 GHash.IO
4: 323373-323376 F2Pool
4: 323090-323093 GHash.IO
4: 323068-323071 F2Pool
4: 322957-322960 F2Pool
4: 322673-322676 GHash.IO
4: 322520-322523 F2Pool
4: 322054-322057 GHash.IO
4: 322001-322004 F2Pool
4: 321849-321852 F2Pool
4: 321463-321466 F2Pool
4: 321459-321462 GHash.IO
4: 321422-321425 F2Pool
4: 321347-321350 GHash.IO
4: 321303-321306 GHash.IO
4: 320455-320458 F2Pool
4: 320145-320148 BitFury
4: 319689-319692 F2Pool
4: 319551-319554 GHash.IO
4: 319206-319209 F2Pool
4: 318860-318863 GHash.IO
4: 318694-318697 F2Pool
4: 318184-318187 GHash.IO
4: 317930-317933 F2Pool
4: 317801-317804 F2Pool
4: 317795-317798 F2Pool
4: 317687-317690 GHash.IO
4: 317669-317672 GHash.IO
4: 317562-317565 GHash.IO
4: 317383-317386 F2Pool
4: 317038-317041 GHash.IO
4: 316884-316887 GHash.IO
4: 316878-316881 GHash.IO
4: 316829-316832 GHash.IO
4: 316765-316768 GHash.IO
4: 316750-316753 Cointerra
4: 316152-316155 GHash.IO
4: 315951-315954 F2Pool
4: 315806-315809 GHash.IO
4: 315715-315718 F2Pool
4: 315673-315676 F2Pool
4: 315201-315204 GHash.IO
4: 315005-315008 F2Pool
4: 314967-314970 GHash.IO
4: 314928-314931 GHash.IO
4: 314721-314724 GHash.IO
4: 314187-314190 GHash.IO
4: 314098-314101 F2Pool
4: 313924-313927 GHash.IO
4: 313685-313688 GHash.IO
4: 313439-313442 GHash.IO
4: 313152-313155 F2Pool
4: 312787-312790 F2Pool
4: 312624-312627 GHash.IO
4: 311738-311741 GHash.IO
4: 311649-311652 GHash.IO
4: 311505-311508 GHash.IO
4: 311422-311425 GHash.IO
4: 311143-311146 GHash.IO
4: 311128-311131 GHash.IO
4: 310940-310943 GHash.IO
4: 310873-310876 GHash.IO
4: 310662-310665 GHash.IO
4: 310565-310568 GHash.IO
4: 310552-310555 GHash.IO
4: 310188-310191 GHash.IO
4: 310116-310119 GHash.IO
4: 309864-309867 F2Pool
4: 309402-309405 GHash.IO
4: 309370-309373 GHash.IO
4: 309097-309100 GHash.IO
4: 309004-309007 F2Pool
4: 308854-308857 GHash.IO
4: 308804-308807 GHash.IO
4: 308404-308407 GHash.IO
4: 308392-308395 GHash.IO
4: 308357-308360 GHash.IO
4: 308208-308211 GHash.IO
4: 308159-308162 F2Pool
4: 308102-308105 GHash.IO
4: 308023-308026 GHash.IO
4: 307884-307887 GHash.IO
4: 307822-307825 GHash.IO
4: 307628-307631 GHash.IO
4: 307526-307529 GHash.IO
4: 307300-307303 GHash.IO
4: 306816-306819 F2Pool
4: 306573-306576 GHash.IO
4: 306197-306200 GHash.IO
4: 306074-306077 F2Pool
4: 305911-305914 GHash.IO
4: 305789-305792 GHash.IO
4: 305707-305710 GHash.IO
4: 305650-305653 GHash.IO
4: 305625-305628 GHash.IO
4: 305407-305410 GHash.IO
4: 305321-305324 GHash.IO
4: 305140-305143 GHash.IO
4: 305131-305134 GHash.IO
4: 305038-305041 GHash.IO
4: 304998-305001 GHash.IO
4: 304755-304758 F2Pool
4: 304724-304727 GHash.IO
4: 304673-304676 GHash.IO
4: 304598-304601 GHash.IO
4: 304461-304464 GHash.IO
4: 304435-304438 GHash.IO
4: 304281-304284 F2Pool
4: 303892-303895 GHash.IO
4: 303865-303868 GHash.IO
4: 303820-303823 GHash.IO
4: 303783-303786 GHash.IO
4: 303582-303585 GHash.IO
4: 302710-302713 GHash.IO
4: 302674-302677 GHash.IO
4: 302612-302615 GHash.IO
4: 301839-301842 GHash.IO
4: 301818-301821 GHash.IO
4: 301628-301631 GHash.IO
4: 301314-301317 GHash.IO
4: 301274-301277 GHash.IO
4: 301265-301268 GHash.IO
4: 301179-301182 F2Pool
4: 301123-301126 GHash.IO
4: 301083-301086 GHash.IO
4: 301055-301058 GHash.IO
4: 300720-300723 GHash.IO
4: 300653-300656 GHash.IO
4: 300338-300341 GHash.IO
4: 300203-300206 GHash.IO
4: 299831-299834 GHash.IO
4: 299388-299391 GHash.IO
4: 299282-299285 GHash.IO
4: 298929-298932 GHash.IO
4: 298435-298438 GHash.IO
4: 298220-298223 GHash.IO
4: 298162-298165 GHash.IO
4: 297537-297540 GHash.IO
4: 297267-297270 SlushPool
4: 297121-297124 GHash.IO
4: 297084-297087 F2Pool
4: 296557-296560 GHash.IO
4: 296072-296075 GHash.IO
4: 295629-295632 GHash.IO
4: 295427-295430 GHash.IO
4: 294942-294945 GHash.IO
4: 294831-294834 GHash.IO
4: 294804-294807 GHash.IO
4: 294588-294591 GHash.IO
4: 293863-293866 GHash.IO
4: 293777-293780 GHash.IO
4: 292539-292542 GHash.IO
4: 292410-292413 GHash.IO
4: 291807-291810 GHash.IO
4: 291534-291537 GHash.IO
4: 291222-291225 GHash.IO
4: 291083-291086 GHash.IO
4: 290875-290878 GHash.IO
4: 290326-290329 GHash.IO
4: 290011-290014 GHash.IO
4: 289854-289857 Eligius
4: 289734-289737 GHash.IO
4: 289679-289682 GHash.IO
4: 289622-289625 GHash.IO
4: 289453-289456 Eligius
4: 289343-289346 GHash.IO
4: 288288-288291 GHash.IO
4: 287844-287847 GHash.IO
4: 287754-287757 GHash.IO
4: 287643-287646 GHash.IO
4: 287549-287552 GHash.IO
4: 287510-287513 Eligius
4: 286614-286617 GHash.IO
4: 286501-286504 GHash.IO
4: 286400-286403 GHash.IO
4: 285955-285958 GHash.IO
4: 285584-285587 GHash.IO
4: 285548-285551 F2Pool
4: 285386-285389 GHash.IO
4: 285364-285367 GHash.IO
4: 285290-285293 GHash.IO
4: 285246-285249 GHash.IO
4: 284908-284911 GHash.IO
4: 284886-284889 GHash.IO
4: 284483-284486 GHash.IO
4: 284423-284426 Eligius
4: 284396-284399 GHash.IO
4: 284328-284331 Eligius
4: 283828-283831 GHash.IO
4: 283819-283822 GHash.IO
4: 283615-283618 GHash.IO
4: 283462-283465 GHash.IO
4: 283399-283402 GHash.IO
4: 283369-283372 GHash.IO
4: 283334-283337 GHash.IO
4: 283011-283014 F2Pool
4: 281928-281931 GHash.IO
4: 281802-281805 GHash.IO
4: 281721-281724 GHash.IO
4: 281696-281699 GHash.IO
4: 281431-281434 GHash.IO
4: 281310-281313 GHash.IO
4: 281210-281213 GHash.IO
4: 281170-281173 GHash.IO
4: 281096-281099 GHash.IO
4: 280691-280694 GHash.IO
4: 280614-280617 GHash.IO
4: 280519-280522 GHash.IO
4: 280428-280431 GHash.IO
4: 280322-280325 GHash.IO
4: 279883-279886 GHash.IO
4: 279574-279577 GHash.IO
4: 279468-279471 GHash.IO
4: 279441-279444 GHash.IO
4: 279283-279286 GHash.IO
4: 279121-279124 GHash.IO
4: 279099-279102 GHash.IO
4: 278880-278883 GHash.IO
4: 278732-278735 GHash.IO
4: 277853-277856 GHash.IO
4: 277434-277437 GHash.IO
4: 277395-277398 BitMinter
4: 277294-277297 GHash.IO
4: 277152-277155 GHash.IO
4: 276879-276882 GHash.IO
4: 276277-276280 GHash.IO
4: 276192-276195 GHash.IO
4: 275790-275793 GHash.IO
4: 275628-275631 GHash.IO
4: 275541-275544 GHash.IO
4: 275204-275207 GHash.IO
4: 275118-275121 GHash.IO
4: 274813-274816 GHash.IO
4: 274600-274603 GHash.IO
4: 274408-274411 GHash.IO
4: 274337-274340 GHash.IO
4: 273892-273895 GHash.IO
4: 273619-273622 GHash.IO
4: 273601-273604 GHash.IO
4: 272826-272829 GHash.IO
4: 272731-272734 GHash.IO
4: 272479-272482 GHash.IO
4: 272362-272365 GHash.IO
4: 271838-271841 GHash.IO
4: 271191-271194 GHash.IO
4: 271186-271189 GHash.IO
4: 271024-271027 GHash.IO
4: 270180-270183 GHash.IO
4: 270058-270061 GHash.IO
4: 269901-269904 GHash.IO
4: 269832-269835 GHash.IO
4: 269611-269614 Eligius
4: 268646-268649 GHash.IO
4: 268570-268573 GHash.IO
4: 268562-268565 GHash.IO
4: 267447-267450 GHash.IO
4: 266741-266744 GHash.IO
4: 266349-266352 GHash.IO
4: 266080-266083 GHash.IO
4: 265426-265429 GHash.IO
4: 265146-265149 GHash.IO
4: 264150-264153 Eligius
4: 263056-263059 GHash.IO
4: 262897-262900 GHash.IO
4: 262713-262716 GHash.IO
4: 261002-261005 GHash.IO
4: 259547-259550 GHash.IO
4: 259421-259424 GHash.IO
4: 258350-258353 GHash.IO
4: 258133-258136 GHash.IO
4: 257268-257271 GHash.IO
4: 257003-257006 GHash.IO
4: 256479-256482 GHash.IO
4: 253718-253721 50BTC
4: 252819-252822 GHash.IO
4: 250002-250005 ASICMiner
4: 247141-247144 ASICMiner
4: 247065-247068 50BTC
4: 247057-247060 ASICMiner
4: 246855-246858 50BTC
4: 246355-246358 ASICMiner
4: 246350-246353 50BTC
4: 245921-245924 ASICMiner
4: 245370-245373 ASICMiner
4: 245195-245198 ASICMiner
4: 244142-244145 50BTC
4: 243910-243913 ASICMiner
4: 243075-243078 ASICMiner
4: 242519-242522 ASICMiner
4: 241658-241661 ASICMiner
4: 241601-241604 ASICMiner
4: 241254-241257 ASICMiner
4: 240789-240792 SlushPool
4: 240674-240677 ASICMiner
4: 240324-240327 SlushPool
4: 239854-239857 ASICMiner
4: 239745-239748 50BTC
4: 238270-238273 ASICMiner
4: 235217-235220 BitMinter
4: 234585-234588 BitMinter
4: 228248-228251 SlushPool
4: 225010-225013 OzCoin
4: 223128-223131 50BTC
4: 222540-222543 OzCoin
4: 222523-222526 50BTC
4: 222420-222423 50BTC
4: 221963-221966 50BTC
4: 221597-221600 50BTC
4: 201646-201649 SlushPool
4: 188905-188908 OzCoin
4: 185402-185405 SlushPool
4: 180464-180467 SlushPool
4: 178436-178439 SlushPool
4: 172253-172256 SlushPool
4: 165324-165327 SlushPool
4: 164722-164725 SlushPool
3: 716549-716551 ViaBTC
3: 716477-716479 ViaBTC
3: 716327-716329 ViaBTC
3: 716015-716017 Binance
3: 715875-715877 ViaBTC
3: 715845-715847 ViaBTC
3: 715831-715833 AntPool
3: 715447-715449 F2Pool
3: 715170-715172 F2Pool
3: 715105-715107 ViaBTC
3: 714917-714919 Binance
3: 714895-714897 AntPool
3: 714589-714591 AntPool
3: 714526-714528 Binance
3: 714505-714507 F2Pool
3: 714426-714428 F2Pool
3: 714347-714349 Binance
3: 714306-714308 AntPool
3: 714302-714304 AntPool
3: 714247-714249 ViaBTC
3: 714210-714212 AntPool
3: 713957-713959 F2Pool
3: 713711-713713 AntPool
3: 713681-713683 AntPool
3: 713594-713596 F2Pool
3: 713192-713194 Binance
3: 713158-713160 Binance
3: 713019-713021 F2Pool
3: 712965-712967 F2Pool
3: 712903-712905 F2Pool
3: 712717-712719 AntPool
3: 712658-712660 Binance
3: 712424-712426 AntPool
3: 712382-712384 ViaBTC
3: 712344-712346 AntPool
3: 711978-711980 AntPool
3: 711833-711835 F2Pool
3: 711690-711692 F2Pool
3: 711620-711622 F2Pool
3: 711261-711263 ViaBTC
3: 711246-711248 F2Pool
3: 711237-711239 F2Pool
3: 711213-711215 AntPool
3: 711186-711188 F2Pool
3: 710803-710805 Binance
3: 710658-710660 ViaBTC
3: 710643-710645 AntPool
3: 710634-710636 AntPool
3: 710444-710446 AntPool
3: 710365-710367 F2Pool
3: 710232-710234 AntPool
3: 710121-710123 F2Pool
3: 709874-709876 F2Pool
3: 709581-709583 F2Pool
3: 709505-709507 AntPool
3: 709479-709481 F2Pool
3: 709352-709354 AntPool
3: 709251-709253 F2Pool
3: 708956-708958 AntPool
3: 708953-708955 F2Pool
3: 708396-708398 AntPool
3: 708310-708312 F2Pool
3: 708252-708254 ViaBTC
3: 708248-708250 AntPool
3: 708210-708212 AntPool
3: 708036-708038 AntPool
3: 707906-707908 AntPool
3: 707695-707697 F2Pool
3: 707661-707663 ViaBTC
3: 707625-707627 AntPool
3: 707572-707574 F2Pool
3: 707302-707304 F2Pool
3: 707107-707109 ViaBTC
3: 707074-707076 Binance
3: 707056-707058 AntPool
3: 706988-706990 ViaBTC
3: 706970-706972 F2Pool
3: 706880-706882 SlushPool
3: 706769-706771 F2Pool
3: 706705-706707 AntPool
3: 706364-706366 F2Pool
3: 706254-706256 F2Pool
3: 706031-706033 AntPool
3: 705876-705878 SlushPool
3: 705863-705865 ViaBTC
3: 705849-705851 F2Pool
3: 705690-705692 F2Pool
3: 705672-705674 ViaBTC
3: 705480-705482 AntPool
3: 704798-704800 AntPool
3: 704699-704701 AntPool
3: 704477-704479 Binance
3: 704434-704436 F2Pool
3: 704384-704386 AntPool
3: 704375-704377 AntPool
3: 704283-704285 F2Pool
3: 704198-704200 AntPool
3: 703860-703862 Poolin
3: 703746-703748 AntPool
3: 703707-703709 F2Pool
3: 703646-703648 Binance
3: 703615-703617 F2Pool
3: 703539-703541 Poolin
3: 703456-703458 F2Pool
3: 703452-703454 ViaBTC
3: 703438-703440 Poolin
3: 703410-703412 Poolin
3: 703391-703393 AntPool
3: 703381-703383 AntPool
3: 703264-703266 AntPool
3: 703205-703207 F2Pool
3: 703128-703130 AntPool
3: 703115-703117 ViaBTC
3: 703096-703098 F2Pool
3: 703022-703024 Poolin
3: 702943-702945 ViaBTC
3: 702828-702830 Poolin
3: 702703-702705 F2Pool
3: 702552-702554 AntPool
3: 702545-702547 F2Pool
3: 702454-702456 Binance
3: 702444-702446 Binance
3: 702441-702443 AntPool
3: 702290-702292 Poolin
3: 702239-702241 ViaBTC
3: 702181-702183 AntPool
3: 702169-702171 ViaBTC
3: 702106-702108 AntPool
3: 702081-702083 ViaBTC
3: 702003-702005 ViaBTC
3: 701922-701924 AntPool
3: 701852-701854 F2Pool
3: 701745-701747 Poolin
3: 701703-701705 F2Pool
3: 701519-701521 AntPool
3: 701480-701482 ViaBTC
3: 701370-701372 AntPool
3: 701237-701239 AntPool
3: 701227-701229 AntPool
3: 701147-701149 F2Pool
3: 701059-701061 F2Pool
3: 701040-701042 F2Pool
3: 701003-701005 F2Pool
3: 700815-700817 AntPool
3: 700702-700704 AntPool
3: 700645-700647 Poolin
3: 700603-700605 ViaBTC
3: 700483-700485 ViaBTC
3: 700362-700364 ViaBTC
3: 700222-700224 Binance
3: 700040-700042 Binance
3: 699978-699980 Poolin
3: 699790-699792 Binance
3: 699682-699684 ViaBTC
3: 699559-699561 ViaBTC
3: 699489-699491 AntPool
3: 699439-699441 SlushPool
3: 699371-699373 ViaBTC
3: 699227-699229 Poolin
3: 699219-699221 ViaBTC
3: 699151-699153 F2Pool
3: 699131-699133 AntPool
3: 698984-698986 Binance
3: 698977-698979 Binance
3: 698960-698962 Poolin
3: 698782-698784 ViaBTC
3: 698748-698750 AntPool
3: 698734-698736 ViaBTC
3: 698587-698589 Binance
3: 698428-698430 AntPool
3: 698325-698327 ViaBTC
3: 698285-698287 AntPool
3: 697971-697973 Poolin
3: 697933-697935 Poolin
3: 697875-697877 AntPool
3: 697760-697762 AntPool
3: 697713-697715 Poolin
3: 697710-697712 ViaBTC
3: 697644-697646 AntPool
3: 697599-697601 ViaBTC
3: 697536-697538 F2Pool
3: 697365-697367 AntPool
3: 697184-697186 AntPool
3: 697126-697128 Binance
3: 697101-697103 Poolin
3: 697013-697015 ViaBTC
3: 697002-697004 AntPool
3: 696930-696932 AntPool
3: 696923-696925 AntPool
3: 696901-696903 AntPool
3: 696677-696679 Poolin
3: 696647-696649 F2Pool
3: 696359-696361 AntPool
3: 696289-696291 AntPool
3: 696171-696173 AntPool
3: 696057-696059 AntPool
3: 695244-695246 Poolin
3: 694702-694704 Poolin
3: 694652-694654 ViaBTC
3: 694569-694571 Binance
3: 694535-694537 Poolin
3: 694503-694505 AntPool
3: 694299-694301 AntPool
3: 694189-694191 F2Pool
3: 693768-693770 Binance
3: 693638-693640 F2Pool
3: 693567-693569 ViaBTC
3: 693269-693271 ViaBTC
3: 693198-693200 SlushPool
3: 693165-693167 AntPool
3: 692873-692875 AntPool
3: 692548-692550 AntPool
3: 692520-692522 AntPool
3: 692408-692410 Binance
3: 692341-692343 F2Pool
3: 691842-691844 ViaBTC
3: 691825-691827 AntPool
3: 691687-691689 F2Pool
3: 691510-691512 F2Pool
3: 691274-691276 ViaBTC
3: 691187-691189 Binance
3: 691121-691123 AntPool
3: 691068-691070 ViaBTC
3: 690954-690956 Poolin
3: 690827-690829 ViaBTC
3: 690741-690743 AntPool
3: 690680-690682 Poolin
3: 690657-690659 F2Pool
3: 690179-690181 Binance
3: 689913-689915 AntPool
3: 689900-689902 Binance
3: 689513-689515 ViaBTC
3: 689474-689476 ViaBTC
3: 689355-689357 F2Pool
3: 689041-689043 Binance
3: 688836-688838 AntPool
3: 688825-688827 F2Pool
3: 688783-688785 AntPool
3: 688767-688769 AntPool
3: 688726-688728 F2Pool
3: 688642-688644 F2Pool
3: 688630-688632 AntPool
3: 688515-688517 Poolin
3: 688330-688332 F2Pool
3: 688309-688311 F2Pool
3: 688223-688225 AntPool
3: 688023-688025 AntPool
3: 687941-687943 AntPool
3: 687927-687929 AntPool
3: 687839-687841 Poolin
3: 687802-687804 F2Pool
3: 687691-687693 AntPool
3: 687651-687653 ViaBTC
3: 687449-687451 Poolin
3: 687354-687356 Poolin
3: 687240-687242 BTC.com
3: 687051-687053 ViaBTC
3: 686921-686923 F2Pool
3: 686875-686877 Poolin
3: 686845-686847 AntPool
3: 686746-686748 ViaBTC
3: 686417-686419 Poolin
3: 686204-686206 AntPool
3: 686175-686177 Poolin
3: 686022-686024 F2Pool
3: 685953-685955 F2Pool
3: 685650-685652 AntPool
3: 685535-685537 ViaBTC
3: 685446-685448 AntPool
3: 685379-685381 Poolin
3: 685296-685298 F2Pool
3: 685256-685258 AntPool
3: 685006-685008 F2Pool
3: 685001-685003 Poolin
3: 684964-684966 F2Pool
3: 684954-684956 ViaBTC
3: 684635-684637 Poolin
3: 684631-684633 AntPool
3: 684576-684578 Poolin
3: 684558-684560 Poolin
3: 684462-684464 Poolin
3: 684445-684447 Binance
3: 684417-684419 AntPool
3: 684412-684414 SlushPool
3: 684359-684361 Poolin
3: 684345-684347 Poolin
3: 684321-684323 F2Pool
3: 683987-683989 F2Pool
3: 683941-683943 Poolin
3: 683926-683928 Poolin
3: 683777-683779 AntPool
3: 683661-683663 Poolin
3: 683656-683658 Poolin
3: 683536-683538 AntPool
3: 683522-683524 AntPool
3: 683513-683515 Poolin
3: 683182-683184 F2Pool
3: 683142-683144 Poolin
3: 683127-683129 Poolin
3: 683032-683034 AntPool
3: 682894-682896 AntPool
3: 682803-682805 AntPool
3: 682725-682727 Poolin
3: 682687-682689 AntPool
3: 682564-682566 F2Pool
3: 682531-682533 AntPool
3: 682436-682438 ViaBTC
3: 682430-682432 Poolin
3: 682377-682379 F2Pool
3: 682352-682354 Huobi
3: 682261-682263 BTC.com
3: 682232-682234 F2Pool
3: 682172-682174 F2Pool
3: 682063-682065 AntPool
3: 681950-681952 F2Pool
3: 681927-681929 Binance
3: 681830-681832 AntPool
3: 681672-681674 F2Pool
3: 681621-681623 AntPool
3: 681609-681611 Poolin
3: 681592-681594 AntPool
3: 681540-681542 F2Pool
3: 681334-681336 AntPool
3: 681320-681322 AntPool
3: 681283-681285 Binance
3: 681230-681232 AntPool
3: 681109-681111 Poolin
3: 681100-681102 Binance
3: 680995-680997 F2Pool
3: 680904-680906 AntPool
3: 680580-680582 Binance
3: 680526-680528 F2Pool
3: 679989-679991 BTC.com
3: 679894-679896 ViaBTC
3: 679836-679838 Poolin
3: 679757-679759 F2Pool
3: 679743-679745 AntPool
3: 679713-679715 F2Pool
3: 679615-679617 F2Pool
3: 679593-679595 Binance
3: 679460-679462 Binance
3: 679431-679433 BTC.com
3: 679363-679365 AntPool
3: 679270-679272 AntPool
3: 679007-679009 AntPool
3: 678904-678906 Binance
3: 678837-678839 F2Pool
3: 678768-678770 Poolin
3: 678546-678548 F2Pool
3: 678459-678461 Poolin
3: 678386-678388 ViaBTC
3: 678236-678238 Poolin
3: 678214-678216 Poolin
3: 678118-678120 F2Pool
3: 678049-678051 Poolin
3: 677995-677997 F2Pool
3: 677968-677970 F2Pool
3: 677933-677935 F2Pool
3: 677577-677579 Poolin
3: 677537-677539 F2Pool
3: 677275-677277 Poolin
3: 677182-677184 F2Pool
3: 677042-677044 F2Pool
3: 676982-676984 Binance
3: 676910-676912 F2Pool
3: 676874-676876 F2Pool
3: 676797-676799 AntPool
3: 676668-676670 F2Pool
3: 676620-676622 Poolin
3: 676524-676526 F2Pool
3: 676510-676512 F2Pool
3: 676455-676457 ViaBTC
3: 676251-676253 F2Pool
3: 676021-676023 ViaBTC
3: 675976-675978 Poolin
3: 675757-675759 Poolin
3: 675747-675749 F2Pool
3: 675698-675700 Poolin
3: 675612-675614 Poolin
3: 675252-675254 Binance
3: 675154-675156 F2Pool
3: 675018-675020 Poolin
3: 675012-675014 Binance
3: 674971-674973 Binance
3: 674901-674903 Poolin
3: 674767-674769 Poolin
3: 674624-674626 F2Pool
3: 674606-674608 Poolin
3: 674530-674532 AntPool
3: 674519-674521 AntPool
3: 674481-674483 Poolin
3: 674217-674219 F2Pool
3: 674037-674039 Huobi
3: 674026-674028 F2Pool
3: 673644-673646 Binance
3: 673295-673297 Poolin
3: 673229-673231 F2Pool
3: 673069-673071 BTC.com
3: 673032-673034 AntPool
3: 672971-672973 Poolin
3: 672800-672802 F2Pool
3: 672738-672740 F2Pool
3: 672659-672661 F2Pool
3: 672646-672648 Binance
3: 672494-672496 F2Pool
3: 672486-672488 F2Pool
3: 672390-672392 Binance
3: 672288-672290 F2Pool
3: 672052-672054 Poolin
3: 671998-672000 Binance
3: 671856-671858 Binance
3: 671656-671658 F2Pool
3: 671566-671568 Poolin
3: 671494-671496 BTC.com
3: 671445-671447 Binance
3: 671381-671383 Poolin
3: 671366-671368 Poolin
3: 671280-671282 Poolin
3: 671206-671208 Poolin
3: 671171-671173 F2Pool
3: 671117-671119 Poolin
3: 670925-670927 F2Pool
3: 670846-670848 Binance
3: 670568-670570 AntPool
3: 670524-670526 BTC.com
3: 670426-670428 F2Pool
3: 670228-670230 Binance
3: 670063-670065 AntPool
3: 670015-670017 Poolin
3: 669917-669919 Poolin
3: 669902-669904 F2Pool
3: 669757-669759 F2Pool
3: 669708-669710 Poolin
3: 669449-669451 F2Pool
3: 669366-669368 F2Pool
3: 669333-669335 Binance
3: 669028-669030 F2Pool
3: 669023-669025 AntPool
3: 669003-669005 F2Pool
3: 668860-668862 Huobi
3: 668816-668818 Binance
3: 668628-668630 BTC.com
3: 668601-668603 F2Pool
3: 668541-668543 F2Pool
3: 668535-668537 AntPool
3: 668515-668517 Binance
3: 668466-668468 F2Pool
3: 668369-668371 Poolin
3: 668216-668218 Poolin
3: 668144-668146 F2Pool
3: 667901-667903 Poolin
3: 667712-667714 Huobi
3: 667700-667702 F2Pool
3: 667470-667472 F2Pool
3: 667459-667461 ViaBTC
3: 667382-667384 F2Pool
3: 667343-667345 Poolin
3: 667336-667338 Poolin
3: 667292-667294 F2Pool
3: 667226-667228 Poolin
3: 667205-667207 Poolin
3: 667087-667089 AntPool
3: 666426-666428 Binance
3: 665871-665873 F2Pool
3: 665718-665720 Poolin
3: 665603-665605 ViaBTC
3: 665574-665576 Poolin
3: 665400-665402 BTC.com
3: 665368-665370 F2Pool
3: 665170-665172 Binance
3: 665135-665137 Poolin
3: 665030-665032 Poolin
3: 664951-664953 F2Pool
3: 664879-664881 SlushPool
3: 664581-664583 F2Pool
3: 664577-664579 F2Pool
3: 664322-664324 F2Pool
3: 664260-664262 F2Pool
3: 664221-664223 F2Pool
3: 664061-664063 F2Pool
3: 663881-663883 Lubian
3: 663829-663831 Binance
3: 663785-663787 F2Pool
3: 663769-663771 F2Pool
3: 663735-663737 Poolin
3: 663683-663685 Binance
3: 663380-663382 ViaBTC
3: 663367-663369 BTC.com
3: 663344-663346 F2Pool
3: 663257-663259 F2Pool
3: 663143-663145 F2Pool
3: 663085-663087 F2Pool
3: 663015-663017 Binance
3: 662995-662997 Poolin
3: 662924-662926 ViaBTC
3: 662834-662836 Huobi
3: 662744-662746 AntPool
3: 662675-662677 F2Pool
3: 662644-662646 F2Pool
3: 662435-662437 Huobi
3: 662431-662433 F2Pool
3: 662393-662395 BTC.com
3: 662363-662365 F2Pool
3: 662280-662282 Binance
3: 662200-662202 F2Pool
3: 661882-661884 F2Pool
3: 661723-661725 F2Pool
3: 661623-661625 AntPool
3: 661398-661400 F2Pool
3: 660669-660671 Binance
3: 660664-660666 F2Pool
3: 660626-660628 F2Pool
3: 660563-660565 Huobi
3: 660507-660509 Poolin
3: 660357-660359 Huobi
3: 660252-660254 F2Pool
3: 660247-660249 F2Pool
3: 660244-660246 ViaBTC
3: 660157-660159 F2Pool
3: 660140-660142 Binance
3: 660117-660119 Binance
3: 659879-659881 F2Pool
3: 659757-659759 F2Pool
3: 659736-659738 Huobi
3: 659579-659581 Poolin
3: 659524-659526 Poolin
3: 659093-659095 F2Pool
3: 658889-658891 Binance
3: 658801-658803 Poolin
3: 658770-658772 Poolin
3: 658599-658601 F2Pool
3: 658521-658523 Poolin
3: 658512-658514 Binance
3: 658342-658344 Huobi
3: 658317-658319 F2Pool
3: 658073-658075 Poolin
3: 657931-657933 F2Pool
3: 657879-657881 F2Pool
3: 657824-657826 F2Pool
3: 657664-657666 F2Pool
3: 657614-657616 F2Pool
3: 656841-656843 Poolin
3: 656542-656544 AntPool
3: 656346-656348 F2Pool
3: 656032-656034 Poolin
3: 655829-655831 F2Pool
3: 655744-655746 Poolin
3: 655730-655732 F2Pool
3: 655616-655618 Poolin
3: 655462-655464 Binance
3: 655383-655385 Poolin
3: 655261-655263 AntPool
3: 654934-654936 F2Pool
3: 654787-654789 Huobi
3: 654620-654622 Poolin
3: 654492-654494 ViaBTC
3: 654439-654441 F2Pool
3: 654220-654222 Poolin
3: 654195-654197 Huobi
3: 654014-654016 AntPool
3: 653904-653906 F2Pool
3: 653781-653783 F2Pool
3: 653682-653684 Binance
3: 653626-653628 Poolin
3: 653574-653576 Poolin
3: 653394-653396 AntPool
3: 653366-653368 F2Pool
3: 653290-653292 ViaBTC
3: 652832-652834 Poolin
3: 652612-652614 F2Pool
3: 652532-652534 F2Pool
3: 652474-652476 OKEX
3: 652318-652320 F2Pool
3: 652255-652257 F2Pool
3: 652119-652121 ViaBTC
3: 651762-651764 Huobi
3: 651352-651354 1THash&58COIN
3: 651340-651342 Huobi
3: 651247-651249 Huobi
3: 651144-651146 1THash&58COIN
3: 651128-651130 F2Pool
3: 651045-651047 Poolin
3: 650831-650833 OKEX
3: 650268-650270 BTC.TOP
~snip~

Click for full list

On the contrary, there is a huge risk to DannyHamilton from this step:

So the pool owner himself can do this with less risk.

[1714842656]

1714842656

[1714842656]

1714842656

[1714842656]

1714842656

[o_e_l_e_o]

This got me curious: how often has it happened?

As your data show, it is not that rare. Although you need 51% of the hashrate to be sure of overcoming the main chain eventually (provided you can sustain this hashrate for the length of time needed), you do not need 51% of the hashrate to have a reasonable chance of overcoming the main chain. Although not quite the same (since it is calculating ever catching up to the main chain, as opposed to mining x blocks in a row starting from now), this is essentially laid out in Section 11 - Calculations of the whitepaper. With 10% of the hashrate, you still have a 5% chance to overcome a 2 block deficit. With 30%, you have a 45% chance.

With 20% of the hashrate, which some large pools frequently have, then you still have a 0.1% chance to overcome a 10 block deficit. The GHash.IO numbers skew things a little, since they did control over 51% of the hashrate for a brief time in 2014.

So the pool owner himself can do this with less risk.

Yes, provided the users mining on that pool don't realize what is going on and abandon that pool, which could lead to complete collapse of the pool forever.

[LoyceV]

The GHash.IO numbers skew things a little, since they did control over 51% of the hashrate for a brief time in 2014.

That's why I added the block numbers. If I ignore the very old blocks, these are the recent ones:

Code:

7: 715912-715918 F2Pool
6: 707977-707982 F2Pool
6: 706455-706460 AntPool

The one on top happened just last week, and all three happened in the past 10 weeks.

With 10% of the hashrate, you still have a 5% chance to overcome a 2 block deficit

So if you try 20 times, it becomes quite likely to succeed once! But that also means 19 out of 20 times you missed out on the block reward, and that makes it very costly to attempt, especially since 2 confirmations is probably not enough for a large transaction to be accepted.

[o_e_l_e_o]

The one on top happened just last week, and all three happened in the past 10 weeks.

According to https://btc.com/stats/pool?pool_mode=month, F2Pool have had 14.6% of the hashrate over the last month. There was therefore a 0.088% chance of them finding 7 blocks in a row.

But that also means 19 out of 20 times you missed out on the block reward, and that makes it very costly to attempt, especially since 2 confirmations is probably not enough for a large transaction to be accepted.

It's even worse than that. The calculations given in the whitepaper are to overcome a (for example) 2 block deficit and catch up to the main chain. But even if you pull that off, then you are only at the same height as the main chain, and every other miner on the network is already working on the next block for the main chain and won't accept your alternate chain unless you overtake the main chain. So with 10% of the hashrate, you have a 1 in 20 chance of catching up to the main chain, and even if you do that then you only have a 1 in 10 chance of finding a block at height+1 and overtaking the main chain.

[LoyceV]

According to https://btc.com/stats/pool?pool_mode=month, F2Pool have had 14.6% of the hashrate over the last month. There was therefore a 0.088% chance of them finding 7 blocks in a row.

That 0.088% chance is per block, right? Not per month? If it's per block, it becomes quite likely to happen during a month with thousands of blocks.

[o_e_l_e_o]

That 0.088% chance is per block, right?

Thinking about this more closely, I think I'm wrong to use the equation in the whitepaper.

The equation in the whitepaper is looking at overcoming an x block deficit at any point, whereas here we are looking at mining blocks in a row. So for example, if I mine 3 blocks in secret, but then the main chain mines 1, I can still keep going with my chain but my advantage is now only 2 blocks. Whereas in our scenario here, if I mine 3 blocks, but then the main chain mines 1, my chain is broken and I have to start again.

I think the equation to use here is simply proportion of hashrate raised to number of blocks in the chain, so in this case 0.146⁷.

With 14.6% of the hashrate, F2Pool have a probability of 0.146 to find the next block. If they do find the next block, they again have a probability of 0.146 to find the block after that, or 0.146², and so on.

0.146⁷ works out to a chance of 0.00014%.

This is indeed the chance per block.

[LoyceV]

0.146⁷ works out to a chance of 0.00014%.

This is indeed the chance per block.

That gives them about 0.6% chance of finding 7 blocks in a row in a month. With 5 large mining pools, the chance of either one of them finding 7 blocks in a row during a month becomes a few percent. During a year, it becomes quite likely one of the large pools will find 7 blocks, which is indeed what happens once in a while.

[DannyHamilton]

3 blocks in a row: 5392 times.

The current block height is 717,165

5392 / 717165 = 0.75%

That's a 0.75% chance of pulling off the scam in any single attempt and an 18.75 BTC cost if you fail.

Unless you get quite lucky, you're going to need a scam value of 2,494 BTC (that's more than $112,230,000 at today's exchange rate) for an equivalent expected value.

pooya87 successfully mines a block containing Transaction_B, and decides to broadcast it immediately cashing in on both the 6.25 BTC block reward as well as the 10 BTC DannyHamilton just paid him, and then runs off with the 10 BTC. There is nothing DannyHamilton can do. pooya87 can simply deny all knowledge, and even if DannyHamilton can prove that pooya87 has scammed him, he can only do so by first outing himself as an attempted scammer.

True. My example was built on the assumption that pooya87 and DannyHamilton could be relied on to actually cooperate with each other. Other examples can be bilt that would reduce or eliminate this risk, but they pass additional risk on to one of the other 2 parties and/or increase the overall risk that the scam fails entirely. 

[uchegod-21]

Thank you DannyHamilton for the example above that is like a written play between three people.