Sydney Lipton And His Grosvenor House Dance Orchestra
{"copyright_id":"0xb94fa3e52db66a832ad3a9803c286c511fdef9fb212e42e8845cc91c9dae6e57","name":"Sydney Lipton And His Grosvenor House Dance Orchestra","registered_at":"2026-06-15T19:58:22Z","symbol":"NIM0815720","token_address":"0x6c0b7d191e32ca5b21a207c9a3a08fbd0b3b504a","type":"artist","uuid":"11c33915-3436-407c-ac22-da0c875e75f8"}
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 0xb94fa3e52db66a832ad3a9803c286c511fdef9fb212e42e8845cc91c9dae6e57. Chain 2 (Bitcoin): anchored in block 953899 (2026-06-16T06:37:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/11c33915-3436-407c-ac22-da0c875e75f8.json and https://artists.proofprofile.net/proofs/artist/11c33915-3436-407c-ac22-da0c875e75f8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
(We're Gonna Hang Out) The Washing On The Siegfried Line
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xb7af51f13d979b32896ee42b9d2ecb5310438571eab6ee2b25e01bf71e06842c. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLGL1002191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51d5cfcbf907e3665bc8178afded0d0bface4d7742a7cf06c7b63f951bf6a67d. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLGL1002199.