Les Discrets is a French post-rock project created and led by Fursy Teyssier as a "platform gathering music and art." Teyssier was the sole member of the band until 2009, when he was joined by Audrey
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 0xdafa54d7f54149d0cf0a684532652f7309ef821d38afb42451efd05882e7155f. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3941d77e-b5a9-476e-baed-546f3e714f9d.json and https://artists.proofprofile.net/proofs/artist/3941d77e-b5a9-476e-baed-546f3e714f9d.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 0x239665b3147eecc5215c29c7761559b0159e8ef777efcda44c1fc0bba8583c0f. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/DES560910301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd943bab013ee8ba68efa3fb118be7ee3f60ab321858a9f67c6a2e4519eec07ef. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:21:01Z), 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/DES560910305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe37fff943d14347d586df9b4dce7bda564243efbc59a6e6becbb15ca70b798c2. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:36:21Z), 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/DES560910306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x117a1cd335272ed1fb1345e71be688de11a696933c45d6836abb24875bc732aa. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DES560910309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x905c9b21ca498742ba4f2d5f72a8a0985cf3b3ee1262f99e2c973abaa4e19601. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/DES560910310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57bf4e7516fe09a40b60b4616691746af2b41e6d440536bbecd38149289de881. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/DES561212305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd95f47bed7b56891b5338057d118e5ce9cf5b2744417b69b06fb1633c042aedc. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/DES561212306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc135f0b17fbdab6dc82c5beb1530218079f5ccfa5203f8fdfaf2b68bfbd564ed. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/DES561212307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd92457ee7636af78047f9fe5d621e5c21226e5a8f5b7e4f8dd59306fe2e9fdf. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/DES561617801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95537599be4da6419c492a0ca84c45a3383507cdec01a75a1cf287859c79d086. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/DES561617803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92132b68411663ecf1789e06be29b254717dfac0e6573005f906aece736a5550. 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/DES561617804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd27506451d29acb7dc77dd19ffc22421de767dcf076fd3467fbb3954193fee46. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/DES561617805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678120223f558744604b7579882c329bcd3599532ff433272127b68b78e05468. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/DES561617806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86c5c4abac48435358edc63dbaba7829091c6240ad89f4eb31b1ab9551ebb0c3. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DES561617807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33e9cf7bd822bd23f89063c5aabb94adfe1f65767661e0827e86c7f94e8d10c7. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/DES561617808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5befbfb40e34f81cd05cf272f4091c250a74f096f024d6d2665b2020d3eab35a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DES561617809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab0f7262170a361285f7c0c8810df5544fd6168eee4987bea0a062aed27f0e2b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DES561617810.