Christophe Laporte (; born 11 December 1992) is a French professional cyclist who rides for UCI WorldTeam . A sprinter and classics rider, Laporte has taken more than 30 victories during his professio
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 0x29597e242178e26bfa10e6ff6a0f0146afae29ea31047bab1fa09753e23b58de. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/28c2a7d8-b476-4545-ac71-5b137526e0c4.json and https://artists.proofprofile.net/proofs/artist/28c2a7d8-b476-4545-ac71-5b137526e0c4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Miserere: Works by Gregorio Allegri, Leonardo Leo, Giovanni Moro da Viadana & Francesco Scarlatti
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 0x39cc9e86fa68eba47cc91f5c533cdeeb0433b4f67b1920af897c9b6f6f29fa0e. 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/FRZ130100631.
Miserere a 9: No. 4, Ecce enim in iniquitatibus - Ecde enim veritatem
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bed147f10500df28d04764d26d5e5fd781dc33c99198791302c8730c1185f4f. 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/FRZ130100634.
Miserere a 9: No. 6, Averte faciem tuam - Cor mundum crea in me
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c8f9e402f9a677556ad48d0cf849ade44374becfe9cc654073032c687bbf85. 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/FRZ130100636.
Miserere a 9: No. 7, Ne projicias me - Redde mihi laetitiam
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d41c2aefe7b17af584b008382c7300d4cfa43d1fc02a61aca871ab1afcc293. 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/FRZ130100637.
Miserere a 9: No. 2, Et secundum multitudinem - Amplius lava me
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cfadf57153bb2b2eaa2bfe3ab81b3834b436567e7485257ab0f2ed42d2dbdc4. 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/FRZ130100632.
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
Miserere a 9: No. 3, Quoniam iniquitatem - Tibi soli peccavi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdd33b3c9d15791205074c370642b93e1352e1deeaffbe65d84fe908391649b9. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/FRZ130100633.
Miserere a 9: No. 5, Asperges me hyssopo - Auditui meo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8b960108772b8dd6d9a0debc14267a1e26d10f5f563c09ec3116f9d1b903f9. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/FRZ130100635.
Miserere a 9: No. 8, Decebo iniquos - Libera me
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb8252f99a68863bf3976c07b3553d018178c7ff1c262156ff44a137259bbeac. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/FRZ130100638.
Miserere a 9: No. 9, Domine, labia mea - Quoniam si voluisses
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f098a21d553aa4ea26a49c85e926fda3977d266351a2ee6c0fd4ac742fa802. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/FRZ130100639.
Miserere a 9: No. 10, Sacrificium Deo - Benigne fac, Domine
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bcc9aa98e8917cda771dea805f507e85a563c3b689ccadad257d8cff055801d. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/FRZ130100641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb08747596af8ac60fc717509c150b9df77a10a897876ee6958c33951457b653b. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/FRZ130100642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67500f25f063ec7379f9d046d94423780d058feb5e9e727c1ba095f7ab1a5ab3. 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/FRZ130100651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b43fd2dcd684db9745a74a6b2255e7e584d866ebe6c9c673101835bb79058de. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/FRZ130100652.