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 0x1b0ac18f5a8ca55158e21776adaad4beb0d4c91b4695e5c2eb19b7a5a95ebb25. Chain 2 (Bitcoin): anchored in block 953605 (2026-06-14T07:39:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1042cd09-9957-436d-9be1-511c6b6e5db6.json and https://artists.proofprofile.net/proofs/artist/1042cd09-9957-436d-9be1-511c6b6e5db6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Exitos de Pedrito Montañez(Rey del chillador)
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 0x1239baab9909cbf75a94bee8b7e2d343eff37bc51579de93abb058d3fad31542. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZZ7S2510052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb86f8b4233ad178b73c3f294363494235149a7632031e5d2a5bcd0c9493f58b1. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZZ7S2510053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5320d3e8701235d85a9419d43799d1bf010bbf92c30c39e1b4ce21be0e83b0. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZZ7S2510054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74a6ea918399875e541e633be295397ee0eb5ad8732342cf9a787e29374d3c60. Chain 2 (Bitcoin): anchored in block 958676 (2026-07-19T05:43:13Z), 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/QZZ7S2510055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa8ddd628c2d1cf5bff728399859b7e9c2e248f71e15aebca5366db103099fd. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZZ7S2510056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a87bad36b8bb41faceec08954eb10fa61a809174de64d692c023e23a161d4af. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZZ7S2510057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ecc0d283d096ce2a0a1fa7d44d668bf25a8a60823dff00d931d16d4ca8f47ea. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZZ7S2510058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x338833c8d4d0cfc5c2cff6728fe421c6257cb319439f46e1d6e9ce485e21dcfc. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZZ7S2510059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b657e637d26baecedd624434098c26ccbb339efa05f4784d7a746b2a9d12a2e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZZ7S2510060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x396c3ca232b58a4b697e9cf25647125ff4103a28ef160dd23602fc1d13b6c53d. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZZ7S2510061.