Daniel Molina Martínez (born 15 September 1974) is a Spanish para-triathlete and swimmer. He won the PTS3 European Championship in 2017, 2018, 2019, 2021, 2022 and 2023, PTS3 World Championship in 201
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4ccd4b83aaa34f98f7f551fc2d7211a870c2c84d710aa192b2e0675992b6e4. Chain 2 (Bitcoin): anchored in block 953846 (2026-06-15T22:48:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0197b178-4e5a-443a-93de-5f45fe33dba5.json and https://artists.proofprofile.net/proofs/artist/0197b178-4e5a-443a-93de-5f45fe33dba5.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.