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 0x3561f0c8b43fe7df2b74e65117a476cf44acbca18d24c4d5815b3f89b1b94173. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/70af9266-abea-4238-b5d3-1ec1c88695f7.json and https://artists.proofprofile.net/proofs/artist/70af9266-abea-4238-b5d3-1ec1c88695f7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Palmarès des chansons n°4 (2023 Remastered Version)
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 0xaafbcff0b6d2d8d987630c66c9cd3709cd3ebf6014ff2a089b771923660c22c7. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FRX086700184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47cffae67369a16c1c42bab55a616ce992239ad64490b04076313b81e19ff3aa. 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/FRX086700185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd453da52dbcd4f2da88a2d10ae84b281ccd2dcad0928b10f28f190a0fae4f617. 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/FRX086700186.
Un tout petit pantin (Puppet on a String) - 2023 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe14c24307f2a75b9f4be0d82aa9205311d971e5ceae4daad71721fe2d09a87. 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/FRX086700188.
Nous ne sortirons qu'au printemps - 2023 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x611764680dfba41c2e1423c0ee204a6dbc5c82ea4870e240aeaab6359b135d40. 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/FRX086700190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe92a4d48886b5cd8f0a6db94877d7f870838fc4a226f097cba50d08055d76839. 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/FRX086700192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a363f800753d6be8776c533f961891a5c991ef40ff70c5533e9a99e53e5952. 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/FRX086700193.
A Whiter Shade of Pale - 2023 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfcb4a9b7fb941dfcb0b21ea91b0815de768c403370cfa1d8d72021d541a00b3. 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/FRX086700183.
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 0x8938c814d4ce5facc6acbdf2967ff41f823911a8827e6c8d93fe25808cfb5174. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/FRX086700187.
L'important c'est la rose - 2023 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35b20a3105e2a1e1774da6dd19e243a868e1879538f7e81a51bb8e57a75b88b0. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/FRX086700189.
Quand on revient - 2023 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be65035fa560cc6498cf3d0972e646ff66cce4946d2537030a4be59a1936fdb. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/FRX086700191.
Les gens du nord - 2023 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb6a32c3c6597d7a938dbfac6d764b66af59ca26fecc6bf1fd40c17d962ae79. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/FRX086700194.
Palmarès des chansons n°3 (2023 Remastered Version)
Palmarès des chansons n°2 (2023 Remastered Version)
Un homme et une femme - 2023 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf14de1f1c1235e8a9051d26418caaeab8c4b02ab31a4449c8bbfa3034dd941a2. 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/FRX086600163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x599b45fe36c7aee083dd5faf612f8f6e32fd141c0dbe943cc5cf7ebfd1a9f3e9. 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/FRX086600171.
Noir c'est noir - 2023 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbad643d3bed1ac9d4f9a369e62ce542a5a762e040573b589d5c036d5d522a925. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/FRX086600162.
Palmarès des chansons (2023 Remastered Version)