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 0x86cf9497fb0492d3d4407c1d89e34e43f0f4fc808286e2f100b2e23f04f8c2cf. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/781427f5-4335-4e39-8ccf-a266b35636de.json and https://artists.proofprofile.net/proofs/artist/781427f5-4335-4e39-8ccf-a266b35636de.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Never Give Up (Motivational Instrumental)
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 0x017b7b5f833b0c856776cad969370cdd47e38502981adcc0beaccaed9e24bfa0. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T19:04:25Z), 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/QZWDE2304912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x930fe590b759ac02de7c4936a0bce66f27c007d59c3da8de8751a4492e38417f. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:48:43Z), 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/QZZ8A2409081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeab1a22970b725ab5ef2fa45e56815914072fbd3f97a4e377c920b2607a67ae. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:30:46Z), 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/GBWUL2541090.
Dubai Arabic Instrumental (Freestyle Beat)