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 0x0e612cbe1604c5141e2dfb3f82a54e6e435afa6b263f5db310ba8dcf32defde8. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9be7e91a-1752-4989-96f1-83a5acae22f7.json and https://artists.proofprofile.net/proofs/artist/9be7e91a-1752-4989-96f1-83a5acae22f7.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 0x5114e2a3043e6d20c4334bd47b62c861b65f631f2054098307dc2191a95edb70. 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/ART0G1804397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x946d927bd920d4d342494bf73706d8ce934343f972c7182c04d79f8590798da8. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/ART0G1804396.
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 0x361444242940b7141db3ae6a5d1dfbc028aecb0736157289d5856ab77d5d81d9. 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/QMFMF1528793.
Santurrona / Me Escapé de Mi Señora (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8049a898a6ce8db0c942813aab9616c802c69acc1463dc17d1b16fc4b79175b. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QMDA61516110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd3bb44cc32fe5624ed770ea56ffb561bdf847ff37c4c2b9a8584022ead6189. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QM6P41561930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3294b3b04ac8953263c3509c8c074ffed87a8fa8958dadbd7383d955dc3d2e97. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QM6P41513040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d05066c6b9f1b29eea0af4f7b00cea920b975a0b5e75619fa5cdf6e9439a010. 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/QM6P41513041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f29c465b9233697d90294ef3c3bdaf13f3fb8141f39a71c57f8e1ea89f5b1a. 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/QM6P41513042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f64973cbe618ecb00b77ff349c6733b3a4754fa58215e3236e5603244ff36f0. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QM6P41513043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7635632e50749c1b16370622ba4159392c2ab8af09f1386b8072f7f01c0f1ed1. 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/QM6P41513044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x041819e01504bf64147bbd5a3eeada7fe10b8ca2fe0200869b1ee978c9d63005. 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/QM6P41513045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56a32aa0e430d9d1f2374fcb4ac02fa158e6eb389cab1eec1d64bbbaefd63a09. 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/QM6P41513048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c3e1cb20741c024aa8df01e94d50ab9053175f525875653973c71681d7fe7c. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QM6P41513046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c7ddc315be1f87752d3a3968ff7aa6070f7ac889fc76df906c920b999e7aee2. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/QM6P41513047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6d8f2b1dd9632a46c5c29d1129269eabea5f4b3b483919cfd1e2bf86d310fc0. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QM6P41513049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f26119a3280d0598b453cfd70a7ec9fc72bd53840df5214f11f8c982b89b8c. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/QM6P41513050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c33fab6aa166f01da5aca275420526ca42a9f44ad9b37b1fb8352c4b4ffcdf4. 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/USA561405927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa1790dda235caf9e66be2483ed7354f4688df66b3cd1afa272152c6e593d76. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USA561405931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x732700b707b7d4e6dc5b0d214c4de982c6f5896005af5ae077bc76fb97e62b58. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USA561405932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76594ca7b005b2be2cde39fcff356b116a2c48e85543a5e9d00e80886995401b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USA561405934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x616d6c43c0720f810250ead92e0b5f8e6e15f3c10a5e48e09ac7a72532a25708. 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/USA561405936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5aaa96dccf7b4c0ffcd543d3eef99215fdd5802631c7d7ff798477fd62f70ee. 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/USA561405937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a9ce8a276e1ae890583f2f5a76b29616c317737e6896bb86022dec4b3c9174. 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/USA561405939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24cd257708b8a54f1974c0bcaef78442b3b7bbaed8cc95193611f97d55433c13. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USA561405928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fe051811ebf3e6fd7e013f09ef12302bf762dcaba7c8d2c1e2f2bb1358f5f5b. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/USA561405929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1342a057faf2d97e02b744172f4c7060750ad0c804bf9cb968b4a2502cbb0b91. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/USA561405930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc097b1ff3e4742267cabd981023681889eca52be81fbe792cfc924639c13c333. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/USA561405933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41d8889cfa8b4304fc009b48727bde362fd561b62538f6994c42f6fc7dd24c90. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/USA561405935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c67d720321b93b9245e5cabf640edc8d3fd97a10a397d0ec2d81028d5192afd. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/USA561405938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeee9bf0ce018bd0bb5832e5361aa4bd2a6fd053c616a9e4b553537c57e74fb6. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/USA561405940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x576141d3afaef1e8f30ee2d2fcb7bdd6885ce7ddfed3be958444c12eb83422a8. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ARXJ92400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x872415eb74d91112b5c89156b46508127e991d2a94ea6364e8a54608b3b427ea. 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/ARXJ92400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce667126f3dfae21400c039494f88305538976674a531f71a4cbf3b1ac00e6bb. 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/ARXJ92400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40bc45c3f846bca5bfa6ab7cede86c7fdfae934d5e99a07dbb92c285d98b9268. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ARXJ92400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c1939601190ccf6a140e8bdc0f70043173bf5d01c606318c3cda8a0c3b4a79f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ARXJ92400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f7454788de04fc4b3d039553da49dd31c548034144130d7fc3d067beb13794. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ARXJ92400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc6da074a057d75af4601f61511ab4deba60abfafa1b70165c324c6dd1448de. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ARXJ92400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7a971fa8c0b38d82f77f1ef4c1cd71cbc552e46d6990237f77b732e9632027c. 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/ARXJ92400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657c6149fa90d06385538c471327b4a39671a94b3c8386b72b42ff679c58279f. 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/ARXJ92400004.