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 0xd81c8ca41cdba5d251892344a043d4ac7133abdd9cc3fe092d16c1b68bbb2700. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4ee37773-a355-40d9-b947-06d80910f4d9.json and https://artists.proofprofile.net/proofs/artist/4ee37773-a355-40d9-b947-06d80910f4d9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Movimiento Norteño De Los Angeles Presenta: Te Extraño Mas
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 0xa198754dd27350414b5010fde030dfefd7f803760a13d8a5b72a921a9f1ff77d. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:16:23Z), 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/US3DF1702430.
Movimiento Norteño De Los Angeles Presenta: Episodio 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x514cf186d41d87b0ebcac28abdc3e9898ec180f26488228bb5be8c20ff4b6baf. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T14:58:05Z), 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/US3DF1801701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab80f96f6c2ebb57802cbcd7878b03cd5082ee2365a225fd1356b65e7625684. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/US3DF1801703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf76fb2a4bdb18fa2886e127a2e78aea661a28c5e2d8eca4bfe829452307beae2. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/US3DF1801708.