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 0x67067dc6da226ae9480bb7acc331cbe5e79c98662c1750424502d30d0efdb8bb. Chain 2 (Bitcoin): anchored in block 954650 (2026-06-21T04:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d90335cb-58bd-4108-bbe6-e31f97299e0d.json and https://artists.proofprofile.net/proofs/artist/d90335cb-58bd-4108-bbe6-e31f97299e0d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Superhits Sunda Pong Dhut Karya Emas Nano S.
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 0x28273fcbef17548a031c12555b3d446699c2ef6cd6f2fa0cb2bd2a02fd5f8a3f. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/FR96X1992906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9039a8d387e9e89701f6a01d1db8e6aa9ea4f32b078c62381c4a8aff6e9b63ed. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T19:08:48Z), 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/FR96X1992907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf7cf7140c0d030b72877f3b07993126b8370e8d099790883fa6fd11d40c2d9. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/FR96X1992909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c06ce5106f3976852bfdcf6a228b3677ea31fa77af16faa0a375ab69caf186. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T05:00:21Z), 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/FR96X1992910.