I was taking a look at the mempool now and I noticed that.
Anyone could get a confirmation with 1 sat/byte. But there are a lot of transactions paying 20,30,200, even 400 sat/byte.

I don't know if those transactions are miners spamming the network, or just newbies using blockchain.info and similar wallets?

You can see the mempool


https://bitcoindata.science/plot-your-transaction-in-mempool.html

[O que é essa ferramenta e esse gráfico?]

Nas últimas semanas eu estive trabalhando nessa ferramenta que ficou pronta há alguns dias.

Vocês podem ver ela aqui: https://bitcoindata.science/pt/veja-sua-transacao-no-mempool.html



https://bitcoindata.science/pt/veja-sua-transacao-no-mempool.html


O que é essa ferramenta e esse gráfico?
Esse é um gráfico de todas as transações no mempool (que estão esperando para serem incluídas em um bloco e confirmadas). O mempool é uma fila, onde as transações que pagam mais ficam na frente.

Eu fiz essa ferramenta porque todas as carteiras superestimam as taxas, e as pessoas muitas vezes ficam perdidas sem saber porque estão pagando caro ou barato nas transações. Agora você pode observar o mempool aqui e entender melhor o que voce esta fazendo.


O que isso faz?
Essa ferramenta vai plotar a sua transação não confirmada no mempool, mostrando quantos MB de transações estão na frente da sua.

Ela também auxilia se voce ainda nao fez a sua transação, te dando uma boa idea do estado do mempool e onde a taxa que você irá pagar deixa sua transação. Calcula também o tamanho de uma transação, o seu preço e plotar ela na fila do mempool, de acordo com o preço em sat/vbyte que você decidir pagar.


Como usar?
Caso você já tenha feito a transação e ela ainda não esteja confirmada, você pode inserir o ID dela na caixa de texto do final da página para visualizar onde ela se encontra no mempool (se está longe ou perto de uma possível confirmação). O site vai te informar se ela está perto ou não de uma confirmação.

Coloque os detalhes de uma transação que você quer fazer. Insira o número de inputs, outputs e o formato do endereço.

A ferramenta vai calcular o tamanho da sua transação em vbytes e o custo dela, em BTC e em BRL.


Caso você já tenha feito a transação, existem 3 resultados possíveis:

1 - Transação nao confirmada que está ainda fora do espaço do próximo bloco. Calculada a distância até o próximo bloco, ou seja, o quanto o mempool terá que esvaziar para confirmar sua transacão:


2- Transação nao confirmada, porém a taxa está dentro do espaço do próximo bloco.


3- Transacao ja confirmada:




Voce também pode mover o mouse em cima do gráfico para ver quantos vMB de transacões tem prioridade sobre aquela taxa. Lembrem que um bloco tem apenas 1vMB!


Só pra deixar claro: essa ferramenta não recomenda taxa alguma. Somente mostra o mempool no estado bruto e mostra o tamanho dos próximos 3 blocos.

[Bitcoin Forks -How to Claim the most valueable ones with Coinomi(trusted wallet)]

Along those nearly 3 years in this forum I made a lot of interesting materials for newbies and bitcoin users.

Inspire by some other users who made similar threads, I made this all-in-one thread.

Those topics are mostly guides, tools or nice articles.

• Bitcoin Forks -How to Claim the most valueable ones with Coinomi(trusted wallet)
• 2FA - Important Precautions with Google Authenticator
• Let's talk about Privacy
• Paying low fees in Ethereum - Gas Limit, Gas Price and Gwei
• summary of Proof of Work
• How much does an Airdrop cost
• theymos activity on Reddit - A collection of posts
• Overview on browsers. Which one should we use? Support free web while browsing.
• How to stay private when using Android (protonmail blog)
• The Cypherpunk Manifesto - We all should read it
• Bitcoin Privacy - How easy it is for someone to find all your wallets addresses
• Create an Address and Wallet Watcher for free with Excel+ Blockchair API
• bitcoin/bitcointalk.org Stats Animation - all in one thread
• Super Merit Table - Where did you spend/received all of your merits
• Bitcoin Address Balance Checker (Web) - Check balance of addresses in a browser
• Plot your transaction in the mempool
• Bitcoin Unit Converter:🔁Convert satoshi, mBTC,Finney, bit to 170 fiat currency
• Blockdata Dashboard - Daily and Weekly data! 📊

[PayPal & Paxos Bring Crypto to Millions of Users]

PayPal & Paxos Bring Crypto to Millions of Users

I am very excited to announce that Paxos is powering PayPal’s new service enabling its US users to buy, hold and sell cryptocurrency directly from their PayPal digital wallet. This news includes many firsts and has huge implications for the PayPal community, the crypto industry and, of course, Paxos.

For the PayPal community, today is the first time its users can purchase crypto assets directly from PayPal. PayPal is introducing the ability for its users to buy, hold and sell Bitcoin, Ethereum, Bitcoin Cash and Litecoin. To start, PayPal is offering this service to its US customers, then plans to add more geographies and features over time.

https://www.paxos.com/paypal-paxos-bring-crypto-to-millions-of-users/?utm_medium=email&_hsmi=98015516&utm_content=98015516


So, after all, PayPal Bitcoin service will just be an integration with an exchange. Your coins will be in Paxos.

I didn't know about that. PayPal is taking some risks here, especially its reputation is on the line.

Exchanges can be hacked. Exchanges are sometimes shady. I don`t trust any of them my bitcoins, and now I see that I wouldn't trust PayPal as well.

So, holding bitcoin in PayPal you are literally holding in Paxos.

[Entrevistas:]

Inspirado no tópico do zasad@ [Interviews] with Bitcointalk members, eu decidi fazer uma versão para nossa aba local.
Já estou entrando em contato com algumas pessoas por mensagem privada, e acredito que em breve terei algumas respostas.

Quem concordar em ser entrevistado, por gentileza postar a entrevista nesse tópico.


Entrevistas:

1 - girino
2 - Matheus Livecoins

I saw a nice topic today about services that support segwit, by dkbit98.

I saw a question about adoption, and I decided to investigate further into:

Native Segwit adoption is on the rise

i'm curious if there is any data to support this, i thought it plateaued a while ago.

I made a quick google search and found something herE:
https://transactionfee.info/charts/payments-spending-segwit/

That chart really looks optimist, but is there really all that 60%+ adoption?

I looked today at LoyceV tsv file with all addresses with balance, and I made these 2 charts.

The first one is the sum of all balances by address format. We can clearly see that Legacy address holds more than 63% of all balance available.

If you sum all the balance you can see that every bitcoin in included in the graphic, 18.525 million btc

Someone could argue: "But those old addresses are mostly old and abandoned, many whale wallets lost, abandoned, etc"

So I decided to make a second chart: Number of addresses by format.


The situation is even worse...

So, we can conclude that we are having more segwit transactions now than before. But most of the bitcoins are still in legacy addresses.


There is a lot of potential uses in that TSV files LoyceV made. I will try to make better analysis or charts later on.

Edit:
Found a better way to calculate segwit adoption using transaction_count.txt and witness_count.txt in Bitcoin block data available in CSV format (LoyceV/blockchair data)

[What does it do?]

I have been working in the last weeks in this project.

You can  see it here: https://bitcoindata.science/plot-your-transaction-in-mempool.html

What does it do?

You can plot your unconfirmed transaction ID in the text area to plot it in the mempool. This will give you a nice estimation about how far it is from being confirmed.

Alternatively, you can insert your transaction details manually and plot it in the mempool according to the fee per vbyte (fee rate) you decided to use.

For example, the transaction below paid a 10 sat/vbyte fee.
At that fee rate, there are currently 56 vMB of transactions ahead of yours. Theoretically, that  transaction will not get confirmed soon.


https://bitcoindata.science/plot-your-transaction-in-mempool.html


If the transaction fee rate is inside the next block virtual size, it will probably get confirmed in the next block.




How to use it?
Just insert your transaction ID or the transaction details if you didn't make your transaction yet. How many inputs, outputs, fee per vbyte and your address format.

When you hover the chart you can see the size of all transactions competing on your fee rate. This will help you to make your transaction as efficient as possible, according to your needs.


The tool also calculates your transaction virtual size and the total fee you are going to pay (in btc and usd).



A big thanks to @pooya87 and   @nc50lc who helped me with the calculations

I am open to suggestions, as I expect this community to use it.

[BITCOREANS ... To keep BitCore BTX in Coinomi,]

I use very few wallets (about 4 now)

I have tried, in all my life, about 20-30 different wallets.

Wallets are a sensitive software. You are trusting the developer that he made his job, otherwise you will lose your funds just like this  guy.

Therefore, it is very important that you use good software, such as Electrum. But when it comes to multicurrency wallets, we don't have so many good options.
I have lost funds already due to bad coding. I was able to talk to the "CEO" of the wallet and he refunded me.. but it was a terrible experience.

So, it is crucial that those service providers make money, so they can pay for that good code we are going to use.

Today, while navigating in the forum i saw this:

BITCOREANS ... To keep BitCore BTX in Coinomi,
we need to make a payment of 2 BTC
this payment is requested by Coinomi for the maintenance costs of nodes and platform, of this we have in collection fund 0.5 BTC, we are missing only 1.5 BTC.

Just like exchanges, wallets are charging money to keep the coin "listed".
I didn't know this was happening.

This made me think about a few things:

A project that pays to get listed in exchanges and supported by wallets is worth my money?
Now I am very curious about which coins are paying to be supported to the most used wallets.
I believe that a good project would never pay to get listed in an exchange, or pay to get supported in a wallet. The exchanges/wallet should reach the project, not the other way around.

I know wallets can't live on donations, except a few ones like electrum, bitcoin core, etc. Maybe supporting low quality coins is a way to keep the software good. But is it ethical?
We have tons of dead/scams/ponzi projects out there. Isn't this kind of attitude (pay me and I will keep your coin supported) going to feed this vicious cycle we are in crypto?


Bitcore and Coinomi are two project which I like. I really like coinomi, it is an amazing wallet IMO (for its purposes). It is not a long term storage, but a short term mobile wallet, which supports basically anything.
I have nothing against bitcore as well, as it is a bitcoin fork which never pretended to be the "true bitcoin", and always made it clear it was a different proposal.

I am starting a new website and I was researching about how to make money from it.

I took a look at cointraffic.io and it needs 5,000 unique visitors per month. I am still about 1k

I saw also coinzilla but I couldn't find any minimum visitors per month required.

Do you guys have any suggestion?

I will tag @examplens as I believe you know might have some information about this 

https://cointelegraph.com.br/news/xp-investimento-starts-trading-100-bitcoin-and-cryptocurrency-fund-approved-by-cvm

The fund, released by XP Investimentos, was already approved by CVM (government banks regulator). It is going to be a 100% cryptocurrency fund.

XP investimentos is by far the largest investment bank in brazil, and it is also in the US as XP Inc (xpinc.com)

This fund is not available for small investors, only corporative investors or very rich people.
Now rich people and corporate funds are going to be able to buy bitcoin easier in brazil.

I want to make a tool to calculate transaction size for bitcoin transactions.
I already made for legacy addresses, using the formula below:

Code:

(number of inputs)*146+(number of outputs)*34+10

I am satisfied with the results for Legacy addresses.

However I am having problems calculating the transaction size in vbytes for segwit addresses.
I was looking for BIP 141 documentation and found the formula for transaction size in Segwit addresses and found that:

Transaction size calculations
Transaction weight is defined as Base transaction size * 3 + Total transaction size (ie. the same method as calculating Block weight from Base size and Total size).

Virtual transaction size is defined as Transaction weight / 4 (rounded up to the next integer).

Base transaction size is the size of the transaction serialised with the witness data stripped.

Total transaction size is the transaction size in bytes serialized as described in BIP144, including base data and witness data.

https://github.com/bitcoin/bips/blob/master/bip-0141.mediawiki#transaction-size-calculations


So, the virtual transaction size (which is what I am looking for) is Transaction weight / 4, which is the same as:

Code:

Base transaction size * 3 + Total transaction size 

I found some referece on how to calculate Total Transaction size here:

Some reference numbers:

    Outputs:
        A P2PKH (1... address) output is 34 vbytes.
        A P2SH (3... address) output is 32 vbytes.
        A P2WPKH (bc1q... address of length 42) output is 31 vbytes.
        A P2WSH (bc1q... address of length 62) output is 43 vbytes.
    Inputs:
        A P2PKH spend with a compressed public key is 149 vbytes.
        A P2WPKH spend is 68 vbytes.
        A P2SH-P2WPKH spend is 93 vbytes.

But how do I calculate Base Transaction size?? How do I get the size of the transaction "serialised with the witness data stripped"?

Thanks everyone

Coinmarketcap Earn is up again. Now you can earn up to 10 usd in KAVA tokens for watching a few videos (6min)

Personally, i like the idea to receive free money to watch educational videos. Paid to watch some information is always good.

I just watched the videos and made the quizz. Last time I received less than 1 usd and they said I would receive 10usd,... sad.. But i did again anyway.

Hello everyone

I am part of a group of 4 users (sabotag3x, alegotardo, Tryninja and me) in the Portuguese board who are creating a list of 2048 words in Portuguese to be submitted to https://github.com/bitcoin/bips/tree/master/bip-0039

Our bitcointalk topic for dicussion is:
[2020] Lista de Palavras em Português para o BIP-0039

We followed many rules to add the words, that can be seen here:
https://github.com/sabotag3x/bips/blob/master/bip-0039/bip-0039-wordlists.md

Words can be uniquely determined typing the first 4 characters.
No accents or special characters.
No complex verb forms.
No plural words, unless there's no singular form.
No words with double spelling.
No words with the exact sound of another word with different spelling.
No offensive words.
No words already used in other language mnemonic sets.
The words which have not the same spelling in Brazil and in Portugal are excluded.
No words that remind negative/sad/bad things.

Our work is nearly done (we have now a few more than 2048, which are going to be carefully excluded, but all those words follow the criteria above) and it is almost ready to make the pull request to the main branch.

I would like to know if is there any suggestion or any special procedure that we didn't make before making the pull request.

Our list can be seen here:
https://github.com/sabotag3x/bips/blob/master/bip-0039/portuguese.txt

I hope our small group will be able to get into bitcoin history.

Thanks everyone.

Olá pessoal,

Recentemente adquiri o domínio https://bitcoindata.science e estou publicando algumas coisas nele.

Fiz essa ferramenta, que pode ser do interesse de alguns por aqui.

Funciona da seguinte forma. Você adiciona quanto endereços quiser, legacy ou segwit, e a ferramenta mostra em baixo o saldo de cada endereço e o saldo total.
Foi feito com dados da sochain, via API.

A última pesquisa fica armazenada no seu navegador para praticidade.



https://bitcoindata.science/pt/saldo-endereco-bitcoin.html

Uma ferramenta como é essa é bastante útil para mim, e sinceramente não encontrei uma melhor aí...
Como tenho muitos endereços em diversas carteiras (desktop, mobile e hardware wallet) fica difícil acompanhar o saldo total. Assim, coloco vários endereços ai ,e em qualquer lugar posso ver o saldo sem precisar consultar várias vezes um block explorer (uma pesquisa para cada endereço)

Edit: Implementada a sugestão do Gagux

[Bitcoin Address Balance Check (Web)]

Bitcoin Address Balance Check (Web)
https://www.bitcoindata.science/bitcoin-balance-check.html

I have created this tools, which is a very useful tool to me.

 I have tons of addresses and wallets. Due to privacy and convenience reasons. It is somehow hard to me to track my overall bitcoin balance just using wallets. I have wallets inmy desktop, in my ledger, in my mobile, paper, etc.

Full Segwit support.

Using this tool, you can just paste your addresses in the screen and you will see their balances below:


I had previously created the same thing using excel, I posted it here:

Create an Address and Wallet Watcher for free with Excel+ Blockchair API

Coding Enthusiast also made a similar tool, in an app version.

Hope it helps someone. I will be using it

I will try to add more coins in the future.

Para a maioria dos usuários aqui essa tabela irá mostrar apenas a aba portuguesa, mas mesmo assim vou colocar aqui.

Eu usei dados do DdmrDdmr  para fazer essa tabela

É só colocar o seu nome ou de qualquer pessoa na search box que você irá ver onde voce gastou/recebeu seus merits.



https://bitcoindata.science/supertable.html

Demora um pouco para carregar, mas depois é rapida de usar

Hello everyone

I just noticed, this moment, that I hit legendary rank. I wasn't expecting it, as it triggers randomly.



This is a great achievement to me.
I can remember in February 2018 when I was stuck at work and decided to take a good look at this forum for the first time.

Merit system was just introduced and I had 1 merit that I received from pugman when I didn't even know what it was.

When I discovered how hard it was to get 1000 activity (almost 3 years active here), and how hard it was to get 1 merit I thought that I would never reach Legendary. My first goal was to reach Full Member (100 merits) which I was able to get a few months later (Finally! 101 merit and 84 activity!! Celebration Post! My thoughts on merit.).

Well, and that's it: more than  900 days later (73 days just logged) I hit it.



I know there are a lot of posts like this one, but I felt that I needed to post something to mark my new Legendary Rank.

Now, let's wait and see what are the new ranks that theymos will bring us in the future

I read a Twitter today about Google and Facebook regulations (which I couldn't find now). But this applies to cryptocurrency as well:

The average age of Members of the House at the beginning of the 115thCongress was 57.8 years; of Senators, 61.8years, among the oldest in U.S. history.

Source:
https://www.senate.gov/CRSpubs/b8f6293e-c235-40fd-b895-6474d0f8e809.pdf

People of those ages could easily be grandfathers. Do you think granpa could build the legislation for Bitcoin, Ethereum and other cryptocurrencies?


Bitcoin is already big enough and conquered it space.  And bitcoin is not in war with regulators (at least not yet), but imo regulation will have to adapt to bitcoin, and not the opposite.

Summary:
Honduras wanted to build a bridge that could survive the most terrible hurricanes. It was build in 1996 by a Japonese firm.  It costed millions, was beatiful and was Choluteca pride and joy.




A few years later there was a terrible hurricane that destroyed everything in Hondures. All bridges in the country were destroyed but one, Choluteca Bridge.

However, all the roads leading to the bridge were also destroyed. Everything surround the bridge was destroyed. And the river was forced to move around, by the forces of nature, and it is now passing beside the old bridge (which is still intact, today).

What does this tell us about our careers? Our way of thinking?
I believe that this pandemic will forever change our lives. Are you ready for this new normal?

I received this image with this article:

[UPDATED 16/11/2021]

UPDATED 16/11/2021

Привет,

Я делаю анимацию Гонки Мерита для всех локальных разделов. Поскольку Русский раздел - один из крупнейших локалов , он также появился одним из первых.

Надеюсь, вам понравится.

Данные за последнюю неделю июля любезно предоставлены DdmrDdmr. Я буду стараться время от времени делать обновления.




https://public.flourish.studio/story/502539/




Edit:

Thanks to Ratimov for the translation of this post to Russian.