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 0x3c6ddb4db469387f507dc22dcfc5df3590922f89514729fa9d9d86d79386e499. 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/bfacb85c-9e4b-4562-8ef1-1b845e65b42a.json and https://artists.proofprofile.net/proofs/artist/bfacb85c-9e4b-4562-8ef1-1b845e65b42a.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 0xdf397f3799482d21f160fd1261b7905e46d8f72830da24727b685275e8242940. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:50:13Z), 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/QZES81814120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b04d4f93561ed295f57c53406623bc0674d995107711e2655e20662008652cc. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T11:31:39Z), 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/QZES81814121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54ccb315d868069159397d80051109cd626d451d3c49b436167be91323ecee6. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T18:18:57Z), 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/QZES81814123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9098849aa24e350d47a4d6089c68972a13675cfcea3e706f30d15e92cf9533d6. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USCGH2005757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34d259b97fd8829af7a968afb0561af26af5bacd4d077311d40cd04961b02561. 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/USCGH2005705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25811faa7fb01f4da036b2502893af7f1989f74e8d9d0aa0e04219ca295589fa. 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/USHM22067589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9c4d538cb0f6824e8cbf68716733fc9d16fd3cf55a179b5729992a735514e5b. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/USDY42160029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0aa02b7a8dc910b507993a1bd60274b3a6f05906aafaf3c872b25f718dfa01. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:15:18Z), 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/USDY42160031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b8e7434929eed90ddc738b263764563223e31404c6849c4c09056d199fd69b. 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/USDY42160033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x379d4b99fca9fafd8815dd0c9e7f499b813c6b5f21b22fa41d61d8579f8def3d. 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/USDY42160034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62a0c55c495dadce48305ead6e36901b334e64bc33171d02a1741e4ea949e166. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:29:40Z), 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/USDY42160036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48e88e17da4f79e2dc1b1ee08e61d73d857944f8162ec29600ee1f8ed85ff2d0. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/USCGJ2215582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81b9e8b72459f5f02fd0faa9429f66a2be68ac0579ffd7bd43a958dceca65b15. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/USHM22209401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc40879a54d1c42f36eb9636cd1c4951f638f6e07fc3a38b26d729d86c8735909. 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/USCGJ2315686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ed2b30efc92950117fce5c6f106084da117b2d62ff246c861e0baf572e236f0. 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/USCGJ2343166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x599e24541c36e3da18421cdf483602f653986c22effdd72635217db5bad73480. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:35:32Z), 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/USDY42392239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bfe343c27b928c0229daf682aed1bfd458c9f1ef28864549869fc3280fc55d8. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USHM82303064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc716fc3faaa319774f243fd99da98c7afc3d0929e5b114af7b33f411d4ed0642. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/USL4R2374067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef75e7e5785efc584f4af994174b632daaaafdd884438873409509cbbe315419. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/USL4R2321119.
Cordero y León (Original Cast Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f15ad8f7bc947ab5a0c53e8aad33afbc46d45e5187a71ba20ef34501028b20. 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/USCGH2469885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc124571835c5193121f9a3b2d5b7b71b4b3896bbf933b72e04c602bfd2647d44. 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/USCGJ2481507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca5f5c505c8a7d663483262b482e3e70bc1eb5eb6428ff7780e91677053bef9. 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/USHM92405635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb77f90389cfffb694a10e34da80819ee6f6ed36b755ae6d43119964050bcc3e. 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/USHM82429274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe95b6d488bca89e6bcf180aced5b5d1ba755874418edb124d3d8dc96612f895b. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T15:52:18Z), 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/USL4R2497783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa58a032b952ca75c08a0b3d75439d2172ad88a5531c9f94148b6009975c49ff1. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:38:33Z), 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/USX9P2422203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaddb22af480612e9a31bd407f1b073989d3cc184e7370ee1ce64b2823342547. 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/USCGH2506246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x365e025ccde8f769179572bd61e7a5f162fbca63c194f167441d55b27d9d855b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USCGJ2537266.
Jesús Eres Todo (Instrumental Para Bebés)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe69031a2b0c5b0b1db8d8c281ba698f5b1322e4f85738d6c1136b7d2e3eb22c4. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:51:41Z), 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/USCGJ2587513.
Tengo Un Dios De Poder (Instrumental Para Bebés)
Levita De Cuna (Instrumentales Para Bebés)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fdba5598bc5f6a022418444b8c097be930631e3eba9e9285786fc1bfd5e4f09. 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/USHM22526186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97dd65075e6e54c7cf9d47d424799ea9e7544a3f27a36b672f4d45e4a6b0172. 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/USHM22526187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d9f86050f0c5f626b3d197631f1b436588ccf97558ef6d134b7691df4c7de18. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:36:24Z), 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/USHM22526188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dfd389c971924d4f8e88e12dd99350f83a180f46b9b766eaf590bfd63784653. 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/USHM22526189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x285b910e603add46e2d05dcbbb0b4c95327c1146b19067aaecb0d2c4c2174db2. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USHM22526190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd670daa935de117ac8f279e7ac36fb1fc0928a11d873ea59288f42211c1dad. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:12:08Z), 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/USHM22526191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59322bef5c57f2507c7404fde51c1ebfb4eb5ef34e231e01ce8e8bc984e850a0. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/USHM22526192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d40103e27d35db4c2017f5171f95bc98677bd5afe38f1cc672e01cc6ceaab5. 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/USHM22526193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ca04b3a076db0fff601d1782a7ad253e89c896455f0f121cab04e8fdc1bbe1d. 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/USHM22526194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab82acd8a67320a2bb9b0629243b844501126563ea5604d2b97279db117eded. 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/USHM22526195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d0965a4e7e324e069256fb70a8aa955d0b5ff3c4504145869915b1406b1de7f. Chain 2 (Bitcoin): anchored in block 958590 (2026-07-18T17:28:56Z), 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/USHM22526196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92e788654c87c5d109e872319a67e4801b20024d1ccbddcf738883f295ebda91. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:52:09Z), 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/USX9P2535840.