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 0xd0f08cc9f6b8b36f441bb283ae13a00b94ea680ec2b1cdf70948168b2b981be1. 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/af57b733-a035-4964-a792-a58f1103cae2.json and https://artists.proofprofile.net/proofs/artist/af57b733-a035-4964-a792-a58f1103cae2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Chorégraphies de l'ordinaire (Instrumentals)
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 0x0c6b28e433fe8c2ebae73949b04fcbadb11e8e4558973af1942d89eea4a4b56a. 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/FRU451700041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44218bb09e6aa3e9beb3fcb82a3876d40831ab1c5a7fd0892019a007fc9aa5c3. 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/FRU451700043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31813984cfe05faa3780f22b0977f40c00a1f76e613bcf2f5149bd2bbf34d27c. 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/FRU451700045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0feb80b802d7e05f3c7f35b036bbeac1e4cc0dee2955e9466e5482b9e793c3a2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FRU451700046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bee727b6e5182b89c7ed542ddda3a2afc741ac52e715d63d896d7ba7a6ef31a. 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/FRU451700047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe58b464c5f3ea242a37806ae6cc681caba907c62b51c4c9420567ecd0efea971. 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/FRU451700048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a526b153b567e7e8c49a533ac4d829236ed97fbae6a466b5505c65effb9b5b7. 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/FRU451700049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe0c7c07989f1e99f924ff2e7f9d8cf9b8446af5a1f52fbdf5def4b07899a3f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FRU451700051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf8f5f08c16ad22c972f7d92468736425fd9c275f151f2a005f122d092caede8. 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/FRU451700052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393fe96c0638b69dbea332d6854c7bc3c3b1c020ec41ddaf3eda9ec74d6c8c2b. 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/FRU451700053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9460ce7d7f5255f58c59a0c288764018a2eaafe0301775b2c71d2617cb453d1. 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/FRU451700056.
L'étranger - Thème de la nuit Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbaa0a4ca1c27509948ea93f0bff5fcb9fb8ec8ff33d23b3d82c8b4840990506. 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/FRU451700057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00029151e864a98815f1d03748538d5bf39eda1e2c4a749479d8c263fc2375f8. 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/FRU451600037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5411a2bc7c035af58a6c332272e84f04597a452a1e131b484d5fcf65919245. 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/FRU451600039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeee3a9f422b2796a9fb488656d8d2029da658770c558c041427e309c38019c7d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FRU451600040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd369196ef0980eb5631ddef94a6a28a6e4857867721af31438cb4473bb665b46. 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/FRU451600041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5afa60f2dee7e5446ba66e44f659326fc81adb633ab39e1c22c9cc0b4716b9e. 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/FRU451600042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1081085ab273cb8825b24da3211816942c5701dd1740abffba4d7063c7de323. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FRU451600043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2378b51a9cd6d0b3f3393b64f2d408d8a800a85752f029564b3e7780fdb831e3. 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/FRU451600047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08107c7e4932e0d9bc428637312493000ccd5dedee65c12117b8031d3f7ffc83. 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/FRU451600049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3806712c375268649cb7482ceb1e54ac78cc9e8d1654c458e5897562f4271561. 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/FRU451600050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00029151e864a98815f1d03748538d5bf39eda1e2c4a749479d8c263fc2375f8. 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/FRU451600037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc247d58d4d1e19c463e8986948dff2fe4ff24b43a49caf271a516d1a433deef5. 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/FRU451100133.
Au calme, les citoyens! (Vacances et chanson française)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c6b28e433fe8c2ebae73949b04fcbadb11e8e4558973af1942d89eea4a4b56a. 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/FRU451700041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44218bb09e6aa3e9beb3fcb82a3876d40831ab1c5a7fd0892019a007fc9aa5c3. 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/FRU451700043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31813984cfe05faa3780f22b0977f40c00a1f76e613bcf2f5149bd2bbf34d27c. 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/FRU451700045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0feb80b802d7e05f3c7f35b036bbeac1e4cc0dee2955e9466e5482b9e793c3a2. 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/FRU451700046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bee727b6e5182b89c7ed542ddda3a2afc741ac52e715d63d896d7ba7a6ef31a. 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/FRU451700047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe58b464c5f3ea242a37806ae6cc681caba907c62b51c4c9420567ecd0efea971. 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/FRU451700048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a526b153b567e7e8c49a533ac4d829236ed97fbae6a466b5505c65effb9b5b7. 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/FRU451700049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf8f5f08c16ad22c972f7d92468736425fd9c275f151f2a005f122d092caede8. 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/FRU451700052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393fe96c0638b69dbea332d6854c7bc3c3b1c020ec41ddaf3eda9ec74d6c8c2b. 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/FRU451700053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9460ce7d7f5255f58c59a0c288764018a2eaafe0301775b2c71d2617cb453d1. 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/FRU451700056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbaa0a4ca1c27509948ea93f0bff5fcb9fb8ec8ff33d23b3d82c8b4840990506. 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/FRU451700057.
George Michael - Plaisir de France Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x625d996080634ab4f645e4342a0ca7c22448af102cd5fe2a8b79133d2f19a774. 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/FRU451400196.
Le grand sommeil - Plaisir de France Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe6290f9256872d7213799ccaef6285202b61d4181d5bd30c8b17cb5df2acb2b. 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/FRU451400198.
Coeur de pierre - Plaisir de France Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8ba46cdc804ba7116785615a54a505a9a88b5d3394fa004758287de0adef3f3. 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/FRU451400201.
Marianne, You've Done It Now - Plaisir de France Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf00c58d6c4403c1c6ec7883628855e63aab0b7ad1db660a9d0a24a6c6ea31c31. 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/FRU451400216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcff4065628ec5f704606cce6423cd5631bae9f58b946275145204a3c2958b8ee. 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/FR3S52000160.