Les Prêtres (meaning The Priests in English) is the name of a musical trio created by the initiative of Mgr Jean-Michel di Falco. The project was inspired by the success of a similar Irish musical pro
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 0x95e71430022c7b247127dd8d2fd4899852cdbb9b05931def664e50df268d96e1. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e5f17688-67e9-4499-84c9-b64e3b6eb332.json and https://artists.proofprofile.net/proofs/artist/e5f17688-67e9-4499-84c9-b64e3b6eb332.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 0xbc5e9d47e5c6947b2a23d89b7891c42d5b6d3abd80a2a82adf1b751cf5df17b3. 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/CAI601792207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c14e965070e86a7617d784f703d31997bd7f60b568482429571753c31329f5d. 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/CAI601792208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x038cb6842ae3379861b4b055aa6b553d4a836f4dfae0c142ff388cf1ed837c3e. 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/CAI601792210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd8e85a94255861e91490a5e7aec672324e052f1b7dd6945991a6a85a376b62. 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/CAI601792211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0779ca29c7a33e591504f1a2cdc004147184c86926a5e48d66fa1adfb07748e. 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/CAI601792213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fff3cef338b50bf630b7d7abe7b5136317a1a2b3a859e13aa8c4b9b98248bb2. 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/CAI601792202.
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 0x5521e6d298aa59f98eb8dfad16081889ac16884eed4efecc0256c5a51729fc56. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/CAI601792203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbb32d35c9a06e0cef5edba89399a478e18e06e14b023aef1e9a3c093bbb6ce0. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/CAI601792214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a558965c0b5dd239796cba9584f31bd618d252423b2f27c6cf2d68304fe5e4e. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/CAI601792205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e13e54b2daf042f7b16ee397f58f3a1fb2b6fdcb4982c051ba012929ab55224. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/CAI601792206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3b0edde4d95c69be6e472c0cadb357239bc2358a3f8c97e6ab7770fb575491. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/CAI601792209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48e63c46fb193287f8d2dab922b158ab2a777287ba38fb3c990558f394bfa54d. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/CAI601792212.
Quand les hommes vivront d'amour (Avec artistes invités)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2593fde5b4d03f37a6064b6ee63c96eecdf38f7a8e14a006ae40b13c55fd50c6. 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/CAI601892703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d5717b14feb6dbe6575ef5c4e7bcae369b77a062fb8e5e2387518a2de154c01. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/CAI601892705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6f0679b8ec143d2eb88be23a786574a338febe3c73b5158d6e11e2d69ca8e6b. 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/CAI601892707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a781490debb097a35a22f1680c3d6cde8ac78aff69ee2e1d0d2a4217ab48e5e. 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/CAI601892708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad129b11736be8dbe4c5293580fe770e71818c2c44d63094f4ff0ac169632c86. 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/CAI601892709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40f580627c08e5729741a88318ec8a0553ef007a266cb5ba0c277deef224a37c. 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/CAI601892712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05ca812e1cdcf2fe3ef786c1bc0e6aee8b9f32c9065e3ef1645aad42720be4d2. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T16:36:46Z), 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/CAI601792101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76e5f35e57ffb952aac719f3ecf663d8f807b716ec2b07de4b7e6af499508ae7. 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/CAI601792102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb652e69c368732d0cf7cae1551bec0ceb514cdb832b4d53f4757252371b340e. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CAI601792103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ff691ea8b3a8bb559cbe3f0eb3d9e06c51bff15903929e3a112d4bb9b221d3. 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/CAI601792105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25bd35027595292307798bd419721c787923e19b972c5c54f081933f740a2855. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/CAI601792104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b44484ca7f77fc5fbc002c5cd3eba5f777d811058da9c1d22b0f356b87999d. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/CAI601792106.