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 0xfe1dc1cfe837efc309ecfb1a4a715d75390707c0b3dbc9e19bcc291c36251f2d. 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/4d7517f3-3f8a-4b59-a218-6a7a567ba61c.json and https://artists.proofprofile.net/proofs/artist/4d7517f3-3f8a-4b59-a218-6a7a567ba61c.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 0xe4df1c78b161b0f407c91be78c717e702c949f3ac83098e3681974e483c45fe2. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/FR9KQ1800420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ca4868c7dc2a29ab429d31e041cc2350405e5518a8c257717bbff3e38f2fb3. 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/FR9KQ2000750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71e7307a1e2b74e704c1a2065788e5f9510e09e618a3c30d234daedae7bc0de. 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/FR9KQ2000830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71e7307a1e2b74e704c1a2065788e5f9510e09e618a3c30d234daedae7bc0de. 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/FR9KQ2000830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f9fca847fec1c5c564798576671db8dc954b30a51df2905e2c7106b2b7578f0. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/FR9KQ2000840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a396da21341119991e93a5c702a2f30d9355df51b704f89db00fad4c6772e87. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/FR9KQ2000850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c9bf1da301c21cb8306b23b714bcaec983d87c2258f5da16b56c4043c2d4f18. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/FR9KQ2000860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6244ced4f39543416e9ce0baa71017e3181729708fba0ddccd2f3b95ff1a1e67. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR9KQ2000870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd779974c3c05c11a8d5376f869880dd0679e0c1be12d892c39bf5bc148d97aca. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FR9KQ2000880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3769122c74d379e6448fb3c15f99ee3b868abfbe9f58065297717d786ef214e8. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/FR9KQ2000900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b1cc89ef718227f73705faeea323abccd3191d70c14a7218ecb1710d4fc07d. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/FR9KQ2000910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7673d2a4eb67943c5c914ee932dc848ee13fdaf2a6d55044adb50aac38f151a. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/FR9KQ2000820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10b5cb4e2df2a296bf4e731c4e9bce4a24844720f81dda66b5146e808554b3ec. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/FR9KQ2000800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71e7307a1e2b74e704c1a2065788e5f9510e09e618a3c30d234daedae7bc0de. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FR9KQ2000830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd692f1ca96bd83d5463902c769b6247808c67ee941690c8e4ce9f840efa173. 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/FR9KQ2000890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f9fca847fec1c5c564798576671db8dc954b30a51df2905e2c7106b2b7578f0. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/FR9KQ2000840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x172bd00da9a78c66f9227b93875f83601c6da26dda2fa4e13ffbb244a277cfa2. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/FR9KQ2000720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a396da21341119991e93a5c702a2f30d9355df51b704f89db00fad4c6772e87. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/FR9KQ2000850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c9bf1da301c21cb8306b23b714bcaec983d87c2258f5da16b56c4043c2d4f18. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/FR9KQ2000860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6244ced4f39543416e9ce0baa71017e3181729708fba0ddccd2f3b95ff1a1e67. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FR9KQ2000870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd779974c3c05c11a8d5376f869880dd0679e0c1be12d892c39bf5bc148d97aca. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FR9KQ2000880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb25e513e6852279af20708cd16c1012678a8ddf92c7294bab4fd72ca24316db. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/FR9KQ2000920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3769122c74d379e6448fb3c15f99ee3b868abfbe9f58065297717d786ef214e8. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/FR9KQ2000900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee6fe14e547cfb40c620f01b4069895807e08cb8f8bd182f6e163001a6dc01c. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/FR9KQ1800400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b1cc89ef718227f73705faeea323abccd3191d70c14a7218ecb1710d4fc07d. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/FR9KQ2000910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x220b7dbf37bc3ada64579b2d33863fa1187ee5638ca75929b85d755db65d51fa. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FR9KQ2000980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead292758cf3f355c1648b77462206eb7bb106b9289bef2641d0b3d6048a98a5. 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/TCAIG2463133.
Tout va vite - Extrait de la BO de « En Passant Pécho »
En Passant Pécho (Bande originale inspirée du film)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f25b47c85731e4ad47365838b37d21104a543a705f2820cda0ce204393ff1c. 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/FR9W12103849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc15bc2eb526d39912e3ac841e46879a7cca4819de2f9e26c0aace7f4bc757613. 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/FRS182103791.