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 0x93e87293ce765857a6d8587d71e2523d1cdf5060d086655d33a59e5e73a5951c. 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/4bb0b820-b530-4430-83a6-3cc8ed8925e4.json and https://artists.proofprofile.net/proofs/artist/4bb0b820-b530-4430-83a6-3cc8ed8925e4.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 0x285b073489c0aa7daa085483c82974a896446e2c3c37fe266c7fe7bdd107a85c. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/CAHQJ1992217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf3525e75f270196e11ed34e2c2fe186f5622349be897e2bccbe0f8e029daac. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/CALVP1910689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12015fad5d757bdaadc6c24d8ab1421a151154bb1d93eabd5fa8b726d304d0f7. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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/FRZ042201333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8996fa1140c5e25f57cad9c4bd50d1eaa5a95ac27b2a4ad327cce9277db50e42. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/FRZ042201334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eb877f2f572ac1914444ab337f47b716b6664d683ef08c067d5940db88b4df9. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/FRZ042201336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4966a1d023ec9a8634bb4ca4c350539b409d7cf1f6618fa7dfe81b9af0a3e014. 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/FRZ042201337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x825ef4683e38ef47b7230b9eaec62513fb442df47e2b81f64bc0838ff9276b35. 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/FRZ042201338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48091584e6c443ae7cd6f63682cbe94744d05d101fc54155b6c7175b27c971bf. 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/FRZ042201343.
La goffa Lolita (feat. Chico & The Gypsies)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29398c0c2ed50d25e8bf45c8d4fbc06fbe0f83cdf0c7138667875ebf19d81a79. 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/FRZ042300707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29398c0c2ed50d25e8bf45c8d4fbc06fbe0f83cdf0c7138667875ebf19d81a79. 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/FRZ042300707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x474d1c3c069c734381a67d04f679341cdfc796aa8958848788890a63f973f973. 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/FRZ042300744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f9beb5f0ebdfbcde5a411d06bb9679ff156e033a7fcacf7fbf55f548fb1a20. 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/FRZ042300749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b87efdffd8caf4945f481547f67478c72038ad99d7a62a34bf6c3fa72c036a. 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/FRZ042300745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64401d178e4644ae91db79871ad2318eece12faf2babb7851b84f2a180a55a7e. 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/FRZ042300746.
Le quartier maître (feat. Patrick Sébastien)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb58ccfc2d353a54ab1b7db9eb224e51d9e1fb57d7093a3dfcaabbcd4db0adaf4. 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/FRZ042300747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3874e34db95a53065b8102084295ae152b452a986cb0d143e2a1cd829afeb5d. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/FRZ042300753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1774d0863f251b2902a5fce72248e3a124ab61926f9e5b00242f833b4b550430. 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/FRZ042300748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x537c1da2a06f0d67538ace76acb34f7b68f5c694d7bc6e8acbaef2d1ee8c1828. 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/FRZ042300752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e0a17104e4301512688b40c4c26316e0487316ee1bef0756bbec4d906bca03. 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/FRZ042300751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba2456d330f8b56cc180a18a060aebca2ad2b6eda04b64aef87c4724aea20645. 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/FRZ042300754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc25144da796fb91c6a3731aa6076227453ba3d496337f5624be25b80c8a9dda8. 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/FRZ042300741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33563a2f13fb7ee865dc088ac555e0b09d45a6ca7a63c4a8fb2ec31d8c53b60f. 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/FRZ042300750.
Sarà perché ti amo (feat. Marghe) [Version acoustique]
Sarà perché ti amo (feat. Marghe) - Version acoustique
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c5b9eee12ca807261b427748b15e8c6023f8e3a6a5b9ee842ba537025f86356. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/FRZ042300817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f5b5d7eefd81c8c75a159542482080f571dca175a7761576929197606430e6d. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/FRZ042400133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1115bf12e2d5118e4d290ad07e2ffc1a297b3b7f4485b30413511681cf73fe4f. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/FRZ042500151.