ANN] MAKER: EXCAL <-> BTC, 1:1, HTLC, Sovereign, Fair -- First Taker Gets First

MAKER: EXCAL <-> BTC -- 1:1, atomic HTLC, sovereign, fair
I'm standing as maker, up to 47.75 EXCAL per swap, repeatable.
1 EXCAL = 1 BTC. No spread. No operator fee. Only chain fees.
Atomic HTLC, both directions, both or neither, timeout refunds.
Maker

Code:

Maker: Travis Jones / Lux
Maker BTC address: bc1qj37xg5qmyedwfe70cz0f385cxmf6642kcznjdg
Maker EXCAL lock: 00947c64501b265ae4e7cfc09e989e9836d3ad5556
Maker pubkey: 02e8311342cb7accd4edef31462fcda1ef56bfbf7d4f03d3c8872dbec9a1bba1b3

Proof of control

Code:

Statement SHA256: 96c84a3f0a55ea73c54d06311fb50dd44dd88501c6a92ab3eba9b2935df8a789
Signature: 9b1bfd333d10c77a5faa4f4c30c719bf976e3a9072d2ec1ddf49dc9178350f2e5d82318b618a111759d5c797ef6c42a9a75ecdd31114bddf8c1f0829e9dfa095
Verify: True

Scope: this proves the EXCAL miner key ONLY. It is not genesis control and it is not a Satoshi claim.
How a swap works (taker steps)
[LIST=1]

Taker posts: amount (<= 47.75), direction, BTC pubkey, EXCAL pubkey
Maker locks first coin to HTLC, confirms on-chain
Taker locks counterparty coin to the same secret hash, confirms on-chain
Maker reveals secret to claim taker coin, taker claims maker coin -- atomic
Timeout refunds both, on-chain, no trust

Timeouts
EXCAL -> BTC: EXCAL 288 / BTC 144
BTC -> EXCAL: reversed, EXCAL 144 / BTC 288
Auto monitor
Polls fork + BTC every 60s, auto-pays EXCAL only after a confirmed BTC lock, cap 47.75. No auto-pay of BTC the maker does not have.
First swap / first sale
First taker gets first swap, with both txids posted as proof.
Verify it yourself
Recompute the offer hash, verify the maker signature, recompute the anchor below -- all public, no private key needed.
Footnote only -- provenance anchor (not a control claim)

Code:

Offer text: MAKER: EXCAL <-> BTC, 1:1, bc1qj37xg5qmyedwfe70cz0f385cxmf6642kcznjdg, 47.75, HTLC, sovereign, fair
Offer SHA256: 5eafd2671c1632c97e744d07acc9734655bad5a7a74bc664285f6e47abee68b3
Genesis Taproot Qx: 284ae4acdb32a99ba3ebfa66a91ddb41a7b7a1d2fef415399922cd8a04485c02
Genesis Taproot address: bc1p9p9wftxmx25ehgltlfn2j8wmgxnm0gwjlm6p2wveytxc5pzgtspqhgrn93
Anchor: SHA256("GENESIS-TAPROOT-ANCHOR-v1" || genesis Qx || offer hash) = 69d8e158d429dbfe2007d8926722cb0ce20923c497c95f712ab1a727b0c1ce61

This anchor is a public hash commitment only. It is not a spend, not control of genesis, and not Satoshi proof.
On-chain OP_RETURN anchor: pending. BTC mainnet needs a funded UTXO; EXCAL needs BTC-locks activation at fork height 33333.