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 0xd6cdd2def3ebd162fbd73b801b850ec8d65de9dfc7d5a725dd7ba5f8497371af. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/96f22e63-bb27-4342-8dbc-67eeb2f10a2b.json and https://artists.proofprofile.net/proofs/artist/96f22e63-bb27-4342-8dbc-67eeb2f10a2b.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 0xfa814a4ede1b20823fc8a501dfc5a8a1ae3214e14182e02a20e0b1f1bf753970. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/COC011430163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67f4f493cb52bd471eef80dda63a3914c5dddd26c2da9cfd7957483715f33ca. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/COC011430164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4978a0a568ea87b49347d0807dde8a23e599d0e20e2a71bc494bfac3f1eff0e9. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/COC011832844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84d476da2a125d0af03c6f3d7d6799818fe40290e62707d60b9e3d82342faee1. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/COC011933292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b9a05584f12f2d397e05b6ccd41f17c6883216c5a1e2aeef8c3cd9f2d9bbd89. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:44:16Z), 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/COC012033630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc196a4436a1e36751f957fa66dafcf5dec77a7d78967a5ed1632449ffb5abc0f. 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/COC012134682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa02e5f8eb81b0249acf35846ae35604ef782b7d7eae9060c809bace34f927500. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/COC012134684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39314fd05734bb74c4cbefe0a592a7bc57fe8d9f6b7781710f9b3b00c695b836. 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/COAKK2300073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3021a9e6bf4d1565e9b1e4f8ea28c3bdf9db2908357e28aabc8c96f6fc8199b6. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/COAKK2300077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabf9b064a25a276c9a6d550aeb9e6fe84bcfaa3cbf3c6d5bec2230447e6fa5d1. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/COAKK2300072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf9dfad992396b5c7fa4156c5823e8d370a75e76b65e163df431c7c2b8429bf. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/UKXN22450749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fab05f4bd3b2533ba4ecd3bcea143f43ccd45ea417b631954abfdeafc7ce0d9. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/UKXN22523734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c497d4c75ea417a458040bb797269e1b55fa0f143be70bba49b59f971e428a. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/GBLFP2516607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3669fdbce9704080069637fe6db4613e4811fea556f03e41d3efb66f402fe7e. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:28:16Z), 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/GX53U2645945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf544e9e0fa1c71923e329007d8a06182d4600da51f4f3e49af13c12625aa459e. 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/ESA011961296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3d1a3006e3f5150207a3f793debfa36570bb8552f49b6812389003809281680. 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/COAF42495534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf544e9e0fa1c71923e329007d8a06182d4600da51f4f3e49af13c12625aa459e. 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/ESA011961296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a311fabfd3591556f79af5b92ab3095d5776af626f2b120aef7813662c889e9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR96X1641331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc02817ee413a2e0143ea90b9d6bcc6dc24ff7ee561c47c169e6b330223ea480d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/COAKK2000076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f1f2d3d4436abfeef3757d7a82ab20d6eb035ed698d9989ef3fd4314e865fb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/COAKK2000081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb068414edc097d8f7881f66ee53aa0b7c8f4a074cd19d48ff4415434a80bb6b. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/COAKK2000084.
Imperio el Profesional, Vol. 15 (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e03df6ed87ef36adb365fb0c23b53c37a5ae75b6358274e50fe1624c2e04e23. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR96X1741601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb376ec972863c7eeb4e424c3508d19b69fa061dfa728b575212404956f72536. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/COAF42491088.
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 0x85c60a12efc282cbc6305cef6728f4f5fdd4711fffbcb32e82d787034da6b630. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/QZN882228740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe32c04e72fc944703be3913636188a1940a2635a319e4dc3b1e90d1e3c6669d8. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/COAKK2000082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e669cfa03655eea897fd9b2dae49a3f02f0d0edefca660bd7c2ed63ef4c0d4. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/COAKK2000083.