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 0x9e426818231011e2458c23edff2dba444cee1ad8c15b6e54efa1d8a405904740. 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/c00e72a4-b754-4490-8d83-f6ac7012a8fe.json and https://artists.proofprofile.net/proofs/artist/c00e72a4-b754-4490-8d83-f6ac7012a8fe.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 0xac0ec98e5ee1d3de012590a1f552adb491b17db91285771f9f3a40558bce6ccd. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/UKN6K2401161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b30250b7b161d375bf98094be22843216fd15b5853f4019b25918d0fcf4d273. 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/UKN6K2401162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea2248b981d15aa57d8efa773d1e113ab445f67a5f03374a0c63d29b6381067. 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/UKN6K2401163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31c14785f79caee962dd12cffc8eb44c5e4bde96373db6f6e5cfe4c6aeb99e1. 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/UKN6K2401164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b30250b7b161d375bf98094be22843216fd15b5853f4019b25918d0fcf4d273. 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/UKN6K2401162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a9d31088d1e9de8f65b960267b3f151bc4505a52c948b329942b9dd46bb289. 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/UKN6K2400560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40d4b57e10a2b57943971e03c9d41ecb35eb165565a4992dd897a6c18659fa18. 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/GBQGW2200028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c3e330bfbabc29ea25798598fe8c88d8e8632f2be52a1ef85c177164f57278. 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/GBKQU2238304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32eb29a768b08144a96188943ac3a158400f6144c8dbd45ed477630b2cf85494. 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/GBKQU2238306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1814eb21c1265a5015453fb7f28e324c8d1bedf6575e7123861a77c513899194. 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/GBUM72403850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc8c2a1810715d49488fae75bdbffa770f98dc57821d0d91dccb9c52ece1a276. 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/GBEXH2401864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2286d1d40ffd875f415dd919ce47395724b6273a0f990f4f20bcdcbf55a3580c. 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/GBEXH2401865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef69491cf16bc115e0efb1c9479bbc89c907b5645192431fe9c7523cd37ac954. 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/GBEXH2401866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f76c89b9eda7113a292e10caa173328dcbf2c55016d3657e18f431b31f4f5b5. 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/GBEXH2401867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ddbe9725316f46d26d570e26abb934f3cb35ccd27e0545549b523e074f3e01f. 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/GBEXH2401868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b7b775eb160b7fe450fb6b1c9d01cceacc3ce53b8f8ecf9682a891d7c6efac. 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/CAOJ22400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f118bf988bc116081725f9384c310d9129119ae3d70589143472f0743997622. 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/GBEXH2401870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ff80225fd5f5a1efc40468d16219baf66df7e782eeb08ff6c5108e46b44b323. 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/GBEXH2401871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ac5ed73941a10a6390a802fdc778840084189d342504db44c54a4aa32c77e7. 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/GBEXH2401872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaad3d204867cbdfc9e1ab394667f92c06af110aeb98ccd38fe6e91783d1d479. 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/GBUM72403851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x075c254ed511e591f6d0078105ac945ef491f944439a1d5ce2e495aa2430526e. 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/GBEXH2401873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10bdf128a5cf89711e641a976cce33154f46701ef1524a7b966a3d469a9741ed. 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/GBEXH2401874.
Windows 95 Anthem - Mixed, Chloé Caillet Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7113fd15d8f8840664831683a3a1c2b0e0ee85c12b1ffeb9e4bc1465ae299d4. 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/USZ4V2400232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe719b09433cf41dd8b9ec8a3e48ef62664e33e3f2f74d0e9a0218357523066b0. 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/GBEXH2401876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8df84aee58fb439ff816734c129b3ee3d5fc2155a44d9692022b3f1b804d003. 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/GBEXH2401877.
Rhythm Is Easy - Mixed, Ché Luca'S Lucid Rave Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b9e8eac2b1cb3e9443f9eded462f666c0f10ee1f59b39188d051160643fca58. 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/GBEXH2401881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x852266a81cab9b66f62b9296e0360461bec6da2217b4bd3ce29e052f8eb4e68a. 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/GBFG92200128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f2f4984abac5a7263ef950b8ea7e63463c5602c766dc4e2374fa01e2058e083. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T15:38:08Z), 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/GBFG92200129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad7250c1dc4867ac9bddb9f5a7f9e925427f163615f1d15d2b8083b07e709d4d. 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/GBFG92200131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311b8e906fc331948474e4d4251bacda6b1d10f83ec1d868a92532cdef41a42b. 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/GBFG92200134.
Atlantis (I Need You) - LTJ Bukem Remix - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e8382140fbbd9b0c29f1f0e1fbb2eddfe4c1e00034227e6a88fca68043c72c2. 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/GBFG92200165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59bcaa26574fd737e8d4a13c9c2273086b3b7ac905e73ed1918c7d77e238725d. 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/GBFG92200166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe560a0b01afd949994708c2618fafcf4e2b0ea5de7d0ab30bbd55aac2a9136. 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/GBCCH9900022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef1cc3ea73b0dd6cfe95afddb5f51fd7c020a699a4ef5984c8efcbf207b2a96c. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:35:09Z), 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/DEY472378884.
Goddezz & Kyso Sound present Genesis Pool
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001c7e6eff4baf15437beb290ce1b5ae7750837fc72b6bf24e76b5b0ebcabdb6. 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/GBUM72404185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ecc37d77f7ea33ab4f621e11aabcd8fa254af3bb44486b04becb1e54ac42ae1. 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/GBUM72404169.