Trindade (Portuguese for Trinity) may refer to: Places Brazil Trindade, Rio de Janeiro Trindade, Goiás Trindade, Pernambuco Trindade, Florianópolis, Santa Catarina, Florianópolis, Santa Catarina Trin
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 0x15402b1fd8e10ce9ecebcb06bc896a29e23c62b0a9fa8ab23e0e69dfd10ee504. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c35db99d-743a-4ccc-8769-bcefbcf619b4.json and https://artists.proofprofile.net/proofs/artist/c35db99d-743a-4ccc-8769-bcefbcf619b4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).