{"copyright_id":"0xb1141cda08ef2d7993b1f2a57cfa36897886d2aff9160ffb57d4995d4f7c7597","name":"Orchestra Of The Royal Opera, Stockholm","registered_at":"2026-06-20T08:53:02Z","symbol":"NIM1571956","token_address":"0x722f13ce1fae94de68f921da7e6bddd75610a6eb","type":"artist","uuid":"a93b110e-996c-454f-8b2f-a5ef8abf7cee"}
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 0xb1141cda08ef2d7993b1f2a57cfa36897886d2aff9160ffb57d4995d4f7c7597. 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/a93b110e-996c-454f-8b2f-a5ef8abf7cee.json and https://artists.proofprofile.net/proofs/artist/a93b110e-996c-454f-8b2f-a5ef8abf7cee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadde0e21e0fa1b442632447b90ebc28137fad6797ba4ba3e2a3545a9f23657df. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEUE22333502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2276508b486b749be5fef815a4cfc83c913f825e0a36a00813812a771c67b91b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEUE22333508.
The Very Best of Jussi Björling - Pearl Fisher's Duet