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 0xfa165f4096daecbab96d66da66edde70e0b091017ecdba5d4464e7752d7aa7dd. Chain 2 (Bitcoin): anchored in block 953768 (2026-06-15T09:30:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c34570af-f776-49de-bcb8-f8194934a3d2.json and https://artists.proofprofile.net/proofs/artist/c34570af-f776-49de-bcb8-f8194934a3d2.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 0x43ee24b2d232b814760372b5f043eee0a9d971bc967841d687798cdfaade5d5f. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:19:23Z), 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/INT802201150.
Tejaji Lacha Gujari Rove Inri Gaya Lega Chor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22532599193c665ef8d6c35f84d730cccc5705c7cf228be7cda285a5111a3ffc. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:44:45Z), 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/INT802201814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c43edb62723b3ca1cae31d11259c6753793a0c2f32811fcafa0d8e6c371830c. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:02:01Z), 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/INT802201822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d3cfabc09b69dc67bf35ff3c45396e955b422e85328721d9d69916ad2ff25f. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/INT802202189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8bbc210896c55914a01250e69c409e3878a526d24a2266f2994ccc3f446a46. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T23:01:09Z), 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/INT802202272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e1ea4b9866d37ea9c45e4e2ad5f2054ade0ad46fe0660ed69a592a976b0558. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DGA052519266.