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 0x40bc5236e12a6666162b441d91f25c3515bc61236020b14d4234334d471186b4. 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/2f06023a-283f-4ccd-b31f-5801145d673f.json and https://artists.proofprofile.net/proofs/artist/2f06023a-283f-4ccd-b31f-5801145d673f.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 0x1ee3d01ca035571bf46f3c6db602e3bda1aef749c187208ec424c3760d98f036. 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/ES71G1831095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd15c9263c3305c0bb8bcf2d09c01715322c54680823e7dd1436f4752e78e5839. 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/ES71G1831094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x031a3c7bc575caa78317b0d23f6e89b3c46646ae30ed57236426745298a67780. 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/ES71G1832253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5445d0ea2766691e9aae873ff4f070fd947115ffcf885cbb140ea331065d0679. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/ES71G1833129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d74e00a3d5d979174744de82c7101422946e285f7e4b36de759c93b9f60f9c4. 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/ES71G1833137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7c82f7a500be9a1969eaaeddd6db52410f049c69b1defc0b93ae00f51081792. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ES71G1833138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e6de4bc1d0b8d8e1886637325a7d007952a853c83d4e02f8545b77a4c931139. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:08:02Z), 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/ES71G1833142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe709889f4da13a92009d425ae07418d732ae1943513fb80c73a90c6a8322fed4. 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/ES71G1833143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a73bc4b8fae687d4501c85c6573e24c2f7bc1b1a1ab85ab5d8bf94df6b12eab. 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/ES71G1833130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x684bf2d19da7d74749cbb37c48df31dafc9af29703d5a6408084769ce33f8335. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:21:57Z), 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/ES71G1833131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b706b840bba793f1282dd749174fbe68a6672ccda8ae1d7647ebec027f0e31. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/ES71G1833132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a64e7b08d5b85d976468fcff92d0509683125514c66cc8e1321b4b05ecc41d. 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/ES71G1833135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ecdddc6338c1d09980b08e65b6335dea6743b7039274b0cca719283e391240e. 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/ES71G1835626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b01203f6a2b36a19fc4dc52f0f303d65300dfc99e072fd57ea3b925cad6c490. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/ES71G1871431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef3607eb6407c55b10fcd0cd72e3f2c01433acd2ca012340754cb284709e72e. 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/ES71G1871432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f43f8c5703924bef863c5d86aa5373db3eadf3a7290bd01be4ceb337943bfb3. 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/ES71G1871433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b0d5047677570208b38fa806e8394a771b58d59629468959762e4f3dc1be1c. 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/ES71G1871437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x241cd82887f5025096383e959be64d4efefd93dcc7c602076b5196e4f3bf2c4d. 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/ES71G1871436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x558532384a7758a43239410e792cc58901fe7b6801b06d3e1b59335ca5e9bd48. 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/ES71G1878456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9da9e45402a30c6dc68761d0cefc9562a13d482ae0ba9ebd1cc495840d52b047. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/ES71G2023018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef23b6bf0a57e1c95a8470c2d284c4eb728fdff53a38146d1f9c63d844f8c24b. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T17:42:48Z), 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/ES71G2151809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd97507249d64556eef3b7a77999a0d57f0905890adfd973f1b7f827e7fbc2ec7. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/ES71G2218529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c128aafb5682b7630be76e82efbc66508130a51065b1875973328e43d2868f4. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/ES71G2237270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea73544cadeab17bba47daedc566a8e868bed45b77d2cb70c456631c9429b1b. 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/ES71G2239454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f8bb7628562fb6db415a84ceaadaabcfc9d26f8af6915e5f2134da454adb87. 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/ES71G2242611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c7ec88903f1b23246b2a56cc036cee78cddbf3eaff59c2fc166ab1dc32273e. 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/ES71G2301419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eab7eb906ada925f6e65eb50f8d64c3e7f75bee293838e6bb630763f926a13c. 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/ES71G2301414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x324a09693599c17d3f0aedff2ac6b66bd73d83fe0fcb1055ced9b890ce450e1f. 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/ES71G2301416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc0735ca03b95c027a7dbb6a6bcf4ed25575282abd3ed5ae6df62207ecc806c7. Chain 2 (Bitcoin): anchored in block 957868 (2026-07-13T14:56:55Z), 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/ES71G2301418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1205e9dad0f6f2d5c7af65e73156dcff337f143debf91d0684dd28d47265a2e7. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:38:59Z), 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/ES71G2301411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda3c45a3dd66bd660ef6bcbc5a11d761942170f0f0f49bf6ef2918ab15192d2f. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-20T00:26:37Z), 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/ES71G2325920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x112cbe36ff86afe31ab151c688b9a8a2674efff2f79524eff1d0df0da0089e3f. 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/ES71G2402764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35eb495347b941eee034861aa59f04e1af1e96eabd2b4eb79631d2ad1133da0b. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/ES71G2402765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab5b2b6e47f572bb4cf3feeeeb3dff18af153b6e2a35af61e9ab8614f2698cf. 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/ES71G2402766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8069896add767f0bd5ddebe315fd0eb810bfc64f23cef5f0bd4ee74b26a9a81. 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/ES71G2418967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9e3ae6d8380606589026506d3ccca0e4194fe5f1e1a328a875191d622997159. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/ES71G2423202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d57e598aa89d2ecf7306badaa958aa0ed8b4de2943dc958936d43af22fb655. 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/QZNJZ2377524.
Sinfonico Presenta: Me Compré un Full - Peru Remix
Sinfonico Presenta: Me Compré un Full (Peru Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3961d9c0cf30f775f9996a656406bab9d8e83492ee3ec0b633c5829ff7dbb262. 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/QZ7R41851971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4002f9e8856dfed03d3c15dcebd4194cb430c82f46a4d36f6fd4776eadbb675. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QZWFQ2391178.
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