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 0xaaa99430343ca6cf1eccbc15b6366eb442ea94aa1a23e4cb90945848c06c6600. 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/41803806-86f1-4d60-b88e-004b559d45ac.json and https://artists.proofprofile.net/proofs/artist/41803806-86f1-4d60-b88e-004b559d45ac.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 0x0b364d9e3b870329488c2829ff30d653156b34ab86e234bac74706eb75a03297. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/ES6641100088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x837fcf7014c2cd656c147d2858c030c17da6dfa9d1925a361741691059b5719f. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T05:43:55Z), 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/ES6641200112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d240d45660315c56d874946b231bb633d480bdab81d97ef3e9d01385b8cdd9. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ES6641200113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5914c72d5dcc6a33a369ed34b20f39545685efb5b45a565571ee6c724c50ebd1. 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/ES6641200114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c57e87853473d3839ea8ee69070f0e8b3eefdb39e2579672924c046cd7ec00b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ES6641600052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5627729bb4e28d7a43458048815db920f83047ea490ec1a452a57f42629ce9d5. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/ES6641600053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5127e68aff0b0630158f2a14a48e485b10d0e61b097a3839e50198af7edf0eed. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/ES6641600055.
Ese Hombre (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3912b9097df07aa58679a519e924ae43882138df42715e6fd6f76ab005fb50. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/ES6641900140.
La Chica Vampira 2K20 (Feat. Maria Daniela)
¡Corten! (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d61288a86a77f06966bdf1c8206404799c9146002ad9ba86c5aa197121dc6c. 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/ES6642100137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0266cc6315c6e201d21e09d3aaae39647a56e3de828091670809b292d3b6e0cb. 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/ES6642100138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d62663560204793babb4cebe1fa0ee6a95afec835718cf68883e214a882fd6. 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/ES6642100139.
Por España - Banda Sonora Original de la Película ¡Corten!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd503fae6926bb117ddce1b66dc41ea1286075b463611769507cb223a2fae1638. 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/ES6642100149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd38c5fec6f9ac8084a310938aba06aabe6815b407fb8f57e8cb81175f9d563ce. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/ES6642100140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee525dfbb03a36afdbcd39add8c0c26ba93b471ae687a3e2bd1b30880b7f293. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/ES6642300107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f4ba3ba6960117c39dc624a1a62a0279530519dc7773829c180c6d8bb28b5b. 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/ES6642300110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf14a6aa830c1ee1dca1826139eafb8e756003d24b99f38b4c7fcb0875a776354. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ES6642400075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f4ba3ba6960117c39dc624a1a62a0279530519dc7773829c180c6d8bb28b5b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ES6642300110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd9b8bd20928b38fd755762d4fb45dd3e388ac295fa9ea7ee2de653c70e6e5ed. 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/ES6642500028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf14a6aa830c1ee1dca1826139eafb8e756003d24b99f38b4c7fcb0875a776354. 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/ES6642400075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f4ba3ba6960117c39dc624a1a62a0279530519dc7773829c180c6d8bb28b5b. 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/ES6642300110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6287b655f161327dd04be170836723515322d7c6046863a2c7e0af98dc1feb8. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/ES6642500029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23883a4417909c3d185dbbc8d80d74c0ecd8daad578024f17219d6e800d81aee. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ES6642500030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6da7a0ed99630418c96e4f9de420020640f3d4354a81268ee15869ceddd7dd66. 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/ES6642500032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8faad7512f60c0d5279efec33c1f6747fee04dc4d0ce3d70dccb94b43c24f151. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/ES6642500033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dd17b100216eca30d5598a2046fd57d39c7a8bfd88d9f8d797f4f97792ab258. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/ES6642500034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc58377c919ba5fb8b13e81b553e9fcef90ffc19fd3f0dfdae19e2edba2e6e57c. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/ES6642500035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1397852d0e0e015e8e00813b6746c54ba962d6926dc9d36f7fd3f1f27fa3a1ea. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/ES6642500036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc75e674cfdc045a2850a728555fabc141fbeb4675c1a8f353505ae5e1d4424. 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/ES6642500037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ac5e0e98d711f6438c83c9ff5d76b52cb6b0555d1fa734a09521d9529286896. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/ES6642500038.
Lo Que Me Gusta Del Verano Es Poder Tomar Helado
Space Escapade - Unit 1 (Destination: Pluto Sector 68)
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.
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.
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.
Por España - Banda Sonora Original de la Película ¡Cortén!
Una Navidad Con Samantha Hudson (Banda Sonora Original)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd127a8556f2fdb8787e3ae5ab7fcd248c30e7f65b11b0a0d5c445c36f62b1c. 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/ES6642100129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd127a8556f2fdb8787e3ae5ab7fcd248c30e7f65b11b0a0d5c445c36f62b1c. 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/ES6642100129.
Por España (Banda Sonora Original de la Película ¡Cortén!)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd127a8556f2fdb8787e3ae5ab7fcd248c30e7f65b11b0a0d5c445c36f62b1c. 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/ES6642100129.