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 0xa9dac2284b2f87c362e335576bfb1050e923598b18d8f30c74d8e56d4c453980. 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/930ccf19-17cb-48da-b66b-06c9faa19c94.json and https://artists.proofprofile.net/proofs/artist/930ccf19-17cb-48da-b66b-06c9faa19c94.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 0x610c5d68394eafd38792b1208f69641dc886fb0b6e4756a237f3bf85e8e47c71. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR4Z62000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ac7c1159d7444f5746fd3a441a28858eecf14fe2010b464547bffc217e86e23. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FR4Z62000007.
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 0xd0b61b0a67749b51fd4e34e66ff5c613419ac4a8b0ae4a10d3bff29d11ed08fb. 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/FR4Z62000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6be81ce4dec401c1ac7478b1248126cd6fe170efcaf360c441a9746cd1ad45c1. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/FR4Z62000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0bef1bd24e6fc3a71e0c7980b5b264883e5f8da9aba42f737183893f785c31c. 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/FR4Z62000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e9f6899b72ff1764cb2f3fe462dd5f308681d37b28790b49889a49a74cbdd7. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR4Z62100032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d8375bae2947f854cf18c2a161bc49a8a1a38d9992d09fc80ed4d7dfe2e32f0. Chain 2 (Bitcoin): anchored in block 957253 (2026-07-09T03:08:40Z), 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/FR4Z62100038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc43aecdc30c82313f83eb3eac5fa01d7915ef6926781e3a1d87376a163c3a0f2. 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/FR4Z61800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b3ae842a972eea5bb5635298ef8514884839355145a43b0a10cd87780ab7b3. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/FR4Z61800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807a2a499017940c08f6d9e5dd8535db05343688c937cd30003d5762f7ba913e. 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/FR4Z61800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d9da5364a80a8f1fbb5b3272c5f1eeab91ff09a1c7e540ae32095d85f0490e. 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/FR4Z61800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0343cd74c4c97442b32d40e1d06dd59261a6b5e426bb60c0017da41e1d368649. 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/FR4Z61800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade53b6939b7e5bee43265a455cbcd083325ab1293e4c6be30cbd9d53b1b92aa. 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/FR4Z61800013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12785eeebcd38263549f24287d6cc233e3de2641f4b3f349812a00a1c4046224. 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/FR4Z61800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf4cb0523c1728e841676e43602feceeae842545b82d18b339463739df3976f. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/FR4Z61800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x550d1d2b49688eaff312964f6a0b8dcc62f6b2b0dd69c35e48535e8a2237b997. 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/FR4Z61800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b09752b7c2ac63b54d31bb3d279335a77dbde459ac2e3f1a246d0ec4a10c532. 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/FR4Z61800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x955c6684934435b4f09fe84c4389d44935fce8af10307a09fc78a540845eb44a. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/FR4Z61800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2aa5c7b6e1f14510e9757b01ca886ef0c37e0ce9371dfbe76d4ac67074b08ce. 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/FR5R02500745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1409487f41125166455f0e36fa46a2a107563678efce5feb7ea6de6810ea658d. 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/FR4761800001.
Helldebert - Enfantillages 666 (Version deluxe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aeb022eaab1b488c801fded239778b4b2081e3ce6685b4c2e7b43b320242136. 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/FRZ082400085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd46d84ccfae19ccabf895dfa85f5c36049a17fa402ca1930611bb5db36c006d9. 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/DGA0M2318724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b3ae842a972eea5bb5635298ef8514884839355145a43b0a10cd87780ab7b3. 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/FR4Z61800001.
Fils de personne (feat. Yarol Poupaud) - Live au House of Blues New Orleans, 2014
Live au House of Blues New Orleans, 2014
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfabeaca201b64b43f32c598210cf0de48d93ee232f7b8452e4287e84ec754477. 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/FRZ042200446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac7bf138e19986252fd4fffe61dd2b5471ea2ad5197e3e136b17020bc0739c7f. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/FR1T32002050.
Fils de personne (feat. Yarol Poupaud) - Live au Fillmore Miami Beach, 2014
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bb47a0a5de212e97bee1a82a66e774a08db5e0dfdb7dc04d0ae4df31f97131f. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/FRZ042101064.
Fils de personne (En duo avec Yarol Poupaud) - Live Bercy 2013
Born Rocker Tour (Concert au Palais Omnisports de Paris Bercy; Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a7984e3ae8a0ec26da4438780d2d4b96f97af690bcb20d0766d8b3f19189b2. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/FRZ041300428.