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 0xb543f9aab71d9ac60e6777174d7f8b56e71a82776500fa63d759da7486d5fd34. 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/688b7b86-547a-4a05-a7e5-8e9cdf3184f8.json and https://artists.proofprofile.net/proofs/artist/688b7b86-547a-4a05-a7e5-8e9cdf3184f8.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 0x5a3d4f7f01cdc1a5d5235e49d86a6e82475e1eda32ea880eb4887590beaf9ee2. 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/QZES82372560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d73516cf9a85572f4faf3a90728b36776245b001500f7b8316c74b217484d7. 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/USHM21857923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b7ae8c3b593cbf2a39c0c555344aa2fe45478e0cf706cee0df8aa448bf5abe. 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/FR10S2065104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eacfc068f5b7b3290329e321d5698a5ea2d325d57a16adb10c40b3c641d82d7. 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/FR8FB1804350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc9cb376c35d49c835dbac5a61be4c71903df3eda465d9fcdb477e8135cd0a8b. 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/FR9W12127898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc9cb376c35d49c835dbac5a61be4c71903df3eda465d9fcdb477e8135cd0a8b. 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/FR9W12127898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d95037f92ade77d6d552d785114a01ed3b0dd54af59e6b054db6107bc5b5da. 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/FR9FA1700020.
Bad Boy Records - Extrait de la BO de « En Passant Pécho »
En Passant Pécho (Bande originale inspirée du film)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4e125d9faae0ffb3fedbdfd2c77aad807517ee2497dae14aa141ffe18eafd19. 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/FR7U62100055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07177ca03964c4f23b9f4ef6763bc2c3012d12177780bf56a0a95c562c4e0829. 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/FR96X1958835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd27aac125196d9f40408b66adb8ea978ea247ab204304d808a34a6a42407c80. 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/FR9W12442589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb321a1a1fa47526cfd2543e146945067093518f42630b6e822eaf7e486a42e. 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/QZZ7K2409047.