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 0x25e4b1b305770873ffb622999d70c926b3bfa712cefa6d687b2cc2f3dcdccdd9. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a721c789-1f3b-43a0-b9e1-88aa16380c69.json and https://artists.proofprofile.net/proofs/artist/a721c789-1f3b-43a0-b9e1-88aa16380c69.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 0xca65b1ba00ff0250438373969ade4c4cd537b68c99c3b08b4bb48b13d35ac886. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/MXUM71901937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x228f919f55bbea2a6be3bc91a9806779fd923f81932cee21ce3eaaab64eaeeeb. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/MXUM71901227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc810c578c2363c41eaa561a92aa5ce43498324ad7b54663d23701296374d1e9c. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:46:15Z), 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/MXUM71902768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0ac0b7af79ca5f43dd94d9e64e299a6f9ab73bd31e49f3a8260cbabfaa6319. 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/MXUM71902767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa50f21d399163e9cd31caca98e63b2cdf56adf2ae234294dca0b3a3a3f0095e5. 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/MXUM72005405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64b4801b78ce43ee7eaf5987275a9ff023fba450ddbcedaf4807c4405e882c1. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/MXUM72005402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01fe1bb1942f2b9e5c00e8a2002c20c7d3a2b33717cd8b617c53d493c313a6a3. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:10:20Z), 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/MXUM72005403.
Esperándote (En Vivo Desde El Streamtime/ LiveStream)
Viaje Al Amanecer (En Vivo Desde El Streamtime/ LiveStream)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4f1ff29132ac4d2dfa11078b10a77d72526d897cc4e0a191334b92b6142f21. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/MXUM72102119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31624844a5402055d55575120945cfb23eeac1946fb8ffd83aae42dc1b9d7e74. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/MXUV72201540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd6996e3007931bfc515749c7580b84a37b6daadffd7084b169b1e184056b51. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/MXUV72401755.
El Disfraz Con Denisse Guerrero (Re-versión)
Mientras La Ciudad Descansa con Jacinto (Re-versión)
Extraños de Nuevo Con Marco Mares (Re-versión)
Sed de Acción Con Carolina Ross (Re-versión)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b25cc7c66b6ce092c57342f42ac1eb54aa06a78d835f8ba87f8a43fd40a561d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/AU3J02300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55af69941bfa63a161beab5e9e6ddc87570ee98a8b55fa03a14badbaae2519fc. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ES6062286401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55af69941bfa63a161beab5e9e6ddc87570ee98a8b55fa03a14badbaae2519fc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES6062286401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8734323da3adf25950408accb92bdd26f41b7fa6ec3b4e10037cc0371e6b442d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/MXD782101687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f4feef66ed7e86712432afa95f0c8b413e859af6e45877ce11e86ede733d404. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ESUM72301061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f4feef66ed7e86712432afa95f0c8b413e859af6e45877ce11e86ede733d404. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ESUM72301061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a84cd0b9fbeab76ed55081b42174bd8818f160b3adae3b11b287d18afa7c53f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZKDK2319819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f4561a5caf28dc698cb50479d4f4920cafa1feb94664c75f249a598389ec1d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/MXUM72201742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da57a00e667765e173069211dbe0caec4425eb525d3a99c762f67bf61dac655. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/MXUM72200999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x922808eb913c33557019996d9e213a93258f54b979aa524f8adbfb80e1e2fb4c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/MXF012300563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x922808eb913c33557019996d9e213a93258f54b979aa524f8adbfb80e1e2fb4c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/MXF012300563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b594795d5074ae9257ca9bb2d9a063a3931bf420ba1b694313e8589cd4c6b3. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QZWDD2342033.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45f6470ee1e6921d172961bb38eb11340ff0065f2e6dfaff088aa0996c58342f. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/MXD782101688.