The Girl Choristers Of Salisbury Cathedral
{"copyright_id":"0x1342adb38aff6288919bb1237f50da8fda7b7a42b956212dfda1837bed5738bf","name":"The Girl Choristers Of Salisbury Cathedral","registered_at":"2026-06-20T08:51:14Z","symbol":"NIM1570336","token_address":"0x44840d78b790dedea32f1cddd889e83928b70a82","type":"artist","uuid":"a90ef7c0-c6f6-46ba-87ec-1a5e29c386ab"}
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 0x1342adb38aff6288919bb1237f50da8fda7b7a42b956212dfda1837bed5738bf. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a90ef7c0-c6f6-46ba-87ec-1a5e29c386ab.json and https://artists.proofprofile.net/proofs/artist/a90ef7c0-c6f6-46ba-87ec-1a5e29c386ab.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).