Hoxa may refer to: Hoxa, one of the four clusters in which Hox genes are arranged in higher vertebrates, or one of the following genes associated with it: HOXA9 HOXA11 HOXA11-AS1 (gene) HOXA13 HOXA,
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6acfe39a336320b91829a1c27afcedb678b4c4aa5d40aa4a20e91bb09f7f8fb. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/99ff570a-a1c3-4ca1-bd6b-43fd38ff35b9.json and https://artists.proofprofile.net/proofs/artist/99ff570a-a1c3-4ca1-bd6b-43fd38ff35b9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).