Kinderchor "Die kleinen Amseln" der Musikschule Berlin-Lichtenberg
{"copyright_id":"0x62f1d2a503f9dc04dcfb52c81d2b061cd5cd27b7131750d9a413f58ee73ccaf8","name":"Kinderchor \"Die kleinen Amseln\" der Musikschule Berlin-Lichtenberg","registered_at":"2026-06-20T03:56:14Z","symbol":"NIM1503532","token_address":"0x37c2037bf718f8de555333225ef4950fd7ca7d84","type":"artist","uuid":"9b04c3d0-c1ec-4255-8f1a-625abf42fef5"}
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 0x62f1d2a503f9dc04dcfb52c81d2b061cd5cd27b7131750d9a413f58ee73ccaf8. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9b04c3d0-c1ec-4255-8f1a-625abf42fef5.json and https://artists.proofprofile.net/proofs/artist/9b04c3d0-c1ec-4255-8f1a-625abf42fef5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).