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 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 0x3c5331b7804131df26ce8056cdd3ede2cae8eae3af5956bd39f0112c71384177. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/68252e20-6b43-4ff2-990a-016e551e1d18.json and https://artists.proofprofile.net/proofs/artist/68252e20-6b43-4ff2-990a-016e551e1d18.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 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 0xd67cda7f40a7ca5214dccad2ebfed6e6b6f6daeaa27a5be4619e7e4692fc2b2f. 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/ES6641400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x946049eb4fc277b3dad9ea04c507f14abd62851c0d7ea01b9c608c559a981635. 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/ES6641900138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492f496460d5dd481cbbf7be3ebdb681b14bd40d59c793961b86bb7c72222d29. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/ES6641800102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f558f22e677046afd9e1afa363ab731df1f6fc5a0cd987572de4e0e91bb954. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/ES6641900044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b679d6fe10dca260589b7ea8234899d39b2e844c753104b229abc1d82d516a. 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/ES6641400027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fbfad3042b32566cf0d9499d4d01a89225699a84ba40524f9e259819e5ca843. 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/ES6641800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc746e639b084e163f4df7e5f641dd7e4c6e0f3d6a95e0a7c3bcd5c1b46b1741b. 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/ES6640900043.
Cayendo (2ª Recidiva) [Reworked By Apenino]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f1169af9b9d40cabe8971ea72ed58e58ace5afb7d4a582111cd7241b0b6c69. 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/ES6641700093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x660a28fa2ad9b1cf9d580a749e4760ddbc8bf336d54b3cb30a398bff3054ae51. 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/ES6641700095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6abdfcfc01a412164136f32b3bceddfc67df64687a7f377a00722add44f5bf19. 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/ES6641600064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6afe1f05b58da9fb995295d05e28070605033f57b203fabc05ba69931c874fa7. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/ES6641600066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680c8c0cc6cbd933dd840a243f06e94003f75fb6cbb12801bd8b72d41e3610af. 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/ES6641600068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e14d189786632748dde45eea04729ce66970e223aa6516602730018641a37f. 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/ES6641600074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc746e639b084e163f4df7e5f641dd7e4c6e0f3d6a95e0a7c3bcd5c1b46b1741b. 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/ES6640900043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a25aa4396c2afa7fa973e74327221ab82b639e1b6f7be1773d5f9e752f4753. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/ES6641900169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x946049eb4fc277b3dad9ea04c507f14abd62851c0d7ea01b9c608c559a981635. 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/ES6641900138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492f496460d5dd481cbbf7be3ebdb681b14bd40d59c793961b86bb7c72222d29. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/ES6641800102.
Space Escapade - Unit 1 (Destination: Pluto Sector 68)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064895f34fbd1d6a2b0a7eb4bb35e8fbe9cdb9958268156683359bc47676111b. 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/ES6641100015.
Edward, Had You Ever Thought That The End Of The World Would Come On 20.9.01?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37eb2844897df76e5ca00348df0ab3e55bc69b4c0cfe68bafe87888fb246bb8. 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/ES6641100038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x691b0679741718ae26f379c66108e7c4a3fdde8b85ab6d8256977a5a5e8614f0. 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/ES6641100021.
Lo Que Me Gusta Del Verano Es Poder Tomar Helado
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2653bcf59f78823f0711c9ebaa73f5f79832976c0b691ec3b2b67ef5fca71e8. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/ES6641100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x865467040d9155ff56b1997c85e1ece599138585f5216d0a362bddcb5022768b. 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/ES6641100044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1013bd331ff810e8edda96ab90922e21e9e3a9e08ff0d60cc562211082523c. 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/ES6641100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a6b195ee146c7474c76f05c1a40e1862e07e7f14e7896d7326721492ce02ffc. 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/ES6641100027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97e917841c4184fe585bbae307caa2a7773c4d15ef74de75aaaa2847a36c0983. 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/ES6641100052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcedd8d4cd94b7da1036082c321a95d86771a99d75c96140da86016755573b74. 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/ES6641100031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ff2092503037b9ccecca6d137a715ced0be0060a35d0edaf2bdbd39689d3bc. 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/ES6641100056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46d83801abe03283a282b3910134475d5fb8b46e827e0310b65ebca3502fa63f. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/ES6641100036.
Homenaje A Family (Un Soplo En El Corazón De Elefant)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3dd0fe157cec3ebabbdb4c047e474b986f2f1d0a686c6286687f41127770b9. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/ES6641400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83812447a57a03b655818c2c2e06c205128dce2566535a7249e07722b5d287d5. 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/ES6641400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf4b8289ae29a862ff1d54f4d986b5db4158f82ac2c215cd3d7cb09451f52ba. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/ES6641400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x765ae7a073ee143efefa6d11b682058a1993d2c7a9078ea7dd7ded941d0f48af. 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/ES6641400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fa9285fa954ce03e1a1d9087b444ef76010d296b884ddae35cd4fafbadf4217. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/ES6641300119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf11e085351f39763148605560881d1b5d15672d2965c3b3fcfb5e687594873eb. 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/ES6641400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83f66cfd027eb8c5d37842a1b20ce716de1c8c0041440ccc33b5d3b4ab3b62c6. 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/ES6641400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f7fcad7eb500e51c77258f9414522c7aee0706f230d53d4b920c4e74efc07ab. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/ES6640400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1874d1bef792c27e2808ed19d96b5dc479d0bf7d1625f91c1eb2ea549c988df. 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/ES6640500026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa86a6634c25fdfe7324d40975691addffbdd1e50b64b715325e69e3900d9939d. 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/ES6640300207.
It's The Taking Part That Counts: A Global Pop Sportsday
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x441e2be94bab1202b461edbf590719ac3b78c058bd6444cad848af2b630403aa. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/GBHLW1210887.
Viernes 13 (Una Colección De Historias De Terror, Misterio, Ciencia Ficción, Monstruosidades Y Fenómenos Paranormales)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d2f8a0881dfdcbc97b07ea521e94cb3c2d7d3af0317a22f02b5459265a04d5. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ES6641100087.