Pierre Bouteiller (1655–1717) was a French Baroque composer.L'artiste de cour dans l'Espagne du XVIIIe siècle: p144 Nicolás Morales - 2007 61 Pierre Bouteiller (1655-1717). Maître de chapelle à Troyes
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 0xe0e2b3c0373711b0b459acc253a844f01f2327457759f7ae89dd22e535185bd4. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8bf98316-0b01-4e2d-87bb-574b4c2fbda3.json and https://artists.proofprofile.net/proofs/artist/8bf98316-0b01-4e2d-87bb-574b4c2fbda3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bouteiller: Missa pro defunctis & Motets