Marc Mauillon (born in 1980) is a French singer, sometimes tenor, sometimes baritone. Biography Born in Montbéliard, Mauillon was nominated in the "Révélation Artiste Lyrique" category of the Victo
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 0xb865075e65f581f8b7f5a133ce5b4a4e397da4d74994cd433307d94bd35e7f8d. 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/7848c69f-9bea-4c31-96b3-0ef31a5844a1.json and https://artists.proofprofile.net/proofs/artist/7848c69f-9bea-4c31-96b3-0ef31a5844a1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Un Air d’Italie. The Mandolin in Paris in the 18th Century
"Je m'abandonne à vous" Songs on poems by Henriette de Coligny, Comtesse de La Suze
Fauvel's Proposal to Fortune (Medieval Marriage Music)
Marc Mauillon : Songline - Itinéraire monodique
À nos morts ignorés (Les musiciens et la Grande Guerre, Vol. 15)
Mélodies: Prescience, conscience (Les musiciens et la Grande Guerre, Vol. 4)
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 0x3d8cd37e2ef27feb387d276b3ff69b6bea2e6b5830d7cb7d5571ef9a34507b79. 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/FR6V51300370.
Dowland: Lachrimae, or Seven Tears: No. 1, Lachrimae Antiquae
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18c58c3ccaec5f952ffcf0bc590f619f2e6c7b3bcd4840a24e9231153075d45. 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/GBAYC2000514.
Rameau: Les Fêtes d'Hébé, Act I: "Je vous revois" (Le Ruisseau, La Naïade)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x616cd155ee006155115978d32a738cbbf9bf5671fc69d7321d6a24fa5f81cd1d. 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/GBAYC2000526.