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 0xca403c4b2be619051bf4ec9938f3c2f31d6e16531ec95cfe9c3a74e8f85b2b09. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e361b825-552d-47f6-bdba-e5ac70e3ad37.json and https://artists.proofprofile.net/proofs/artist/e361b825-552d-47f6-bdba-e5ac70e3ad37.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 0x954cf9ebc5df00dde7600a2c6ea3eff1802ac7b9483cb8eb6dbf044eebf5d9fc. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR6F31235760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdeeb65e6323753b7fae3afff141b1ef937487091dce93d6cd5f89e26ce4fb7c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR6V80333239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3780d10b5caea0275ee55da95247c97c182161d3d544453c43b3a9350e49b73. 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/GBEUE1002043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1f0a6386e9b01666de56b982ee702cf746898261cdc07741a2b141917d5363a. 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/GBEUE1100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88cf3b0875c44bfbda1ad27075753aefd2e94b401bd934c004f987f62ecf4bb9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEP080600054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae879f562dc060b574eb14813d4cec55cf71fc9104f727468bf54e862264771. 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/GBLQT1200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a915ce89dc2af54c54f92df506767f81a18fc18e25a1e417b221ca4fb6b85cf. 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/FR6F31235860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31289a7caadea54fcd21c60e2eb28fddb86432d54aadb7e25f5b1fcce621238b. 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/GBEUE0901529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71ca98d70dfba324c4b3c329d3340310c6e70822a957c0bd0ffeeba57bbdf0c5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR6F31235890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9c5fd1e804702e0eef8c4ddc3288a8e555de8ee7b2b5532cc6aa363e648cc06. 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/GBEUE0700784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5633fd818d1574c02d566e5df0815680bf46656c26ebc1896b6e5d49bddc55fc. 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/GBEUE1002258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b51a086dfb2bc28969fca2e6ccbbeda93e2d304e3aa2d7ee980bcac4e12bc48. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBLQT1100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee399fcab2b2126be7ee2154ab90bec292b18043b3513ebacd08d073f77b28b8. 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/BE6F50800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x740f51201491f3417d6550dccc00a063822085f6c824a3712214be331d036403. 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/FR6F31235950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b9984c20d3a04870e95775719fc13b107c7e5621965be2406ffba279238f08c. 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/FR6F31235990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83482e37f9e4ff7827240ede6313f67219d5d57647509f66d0dd8e08e5d5658b. 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/DEDW91100170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x053ab0cc31aa83b7fe3d5061a79d07ca4dd631e9ed8506975b3da580b6fa7c72. 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/DEDW90900047.
I Shouldn't I Wouldn't (Club des Belugas Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea3630261b0461783e590841e1718b5cb63375b20e2df550842e5e23d5f7365. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEH741201125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x223e3a5c73928c3a19f6658ebff15b8605b5188d1aab19013658678e1f3316f3. 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/DEH741201119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4de491522ada2ad91ddc0d3140e2a0ac92cd18007b388cd379b99d2005414c33. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEDW90900042.
Allez Viens (Via Con Me) [feat. Pierre Santini / Lada Redstar]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc646546bde355a16253fb0a87777d706d6e9292128923d2f515eace6ff9ed89. 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/FRU481100100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4468f0c52784538d7c4244c1c6a47ef169a66964cb5ba8c8228f6c1b2beb1815. 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/FR6F31236100.
Sitting on the Shelf Without Shelly (Plaisir de France Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4057cff8f1ebac0ae292e7dd4e90373cbb615db681b61f88d20b92661fe5503. 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/GBZHA0900064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62125896e1d1ce0c11baa0f0cc1f023e70ef282de0ec513b438bab002dd65b3e. 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/FR6F31236120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a3ab054d80d36b22920624af71e2a1ee928f1df9c7a3e3fe5c91eeef5b958ba. 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/FR6F31236180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d09da628ace0c414d557272684ae909c6d6a2a1035d5f8c248c87ff0375ea62. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/FR6F31235910.
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
D. G. M: Do Guetho pro Maringuetho, Vol. 1