Michel Bouvard (born 17 March 1955 in Argenteuil, Val-d'Oise) is a member of the National Assembly of France. He represents the Savoie department and is a member of the Union for a Popular Movement.
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 0x13ed1c951ea62724ec744078ec4931256c45673926d1e3e90440249d307705e5. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/523e99e6-2ba4-44b3-83a1-315fd4d2f343.json and https://artists.proofprofile.net/proofs/artist/523e99e6-2ba4-44b3-83a1-315fd4d2f343.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Vierne: Messe solennelle pour deux orgues et choeur - Widor: 10ème symphonie "Romane" (Orgue A. Cavaillé-Coll Toulouse)
Messe solennelle pour deux orgues et choeur, Op. 16: I. Kyrie
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 0xec1090b0d290c84b013110cd4caac5ce236394289c94ae83d655aa87ea479f4c. 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/FR05G0040280.
Messe solennelle pour deux orgues et choeur, Op. 16: II. Gloria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x589d6087845fa964b5d2207d59ff5b22bbd06e6d647e1f1387f937886212df17. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/FR05G0040281.
Messe solennelle pour deux orgues et choeur, Op. 16: III. Sanctus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ec7c41effd5f8394fa495c092691a33ea8c5bb955060f044d8b556d79ffe8e3. 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/FR05G0040282.
Pièces de fantaisie, 2ème suite, Op. 53: Toccata
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f0fca3f42ba51c1b82693454569eb2d391b4b0c2d770f6c019ef26b7f36472. 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/FR05G0040285.
10ème symphonie "Romane", Op. 73: Moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa74f57bda040b55b3412ac786565c7388d2678b3c21ca5514478efa5db85df5a. 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/FR05G0040289.
Messe solennelle pour deux orgues et choeur, Op. 16: IV. Benedictus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23aa94acd8c138da1740aab2d2c97ae907b881b4e3f32698691f10d2ba8c0477. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/FR05G0040283.
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
Messe solennelle pour deux orgues et choeur, Op. 16: V. Agnus Dei
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee95a00393f756c1989da2da393c2096973270be7403a99ab26abf6798c1c394. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FR05G0040284.
24 pièces en style libre, Op. 31: Livre 1: Idylle mélancolique
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd358e77e8efdd7af243418bf8b40e15a52090612a2f51f3e95c987b64c107430. 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/FR05G0040286.
Pièces de fantaisie, 3ème suite, Op. 54: Impromptu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ae5a846e237c0aa7d98a308cababe8df10994043572ce76ab7434e309b0ce79. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/FR05G0040287.
24 pièces en style libre, Op. 31: Livre 2: Berceuse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd155df4d2e872c88bf513a0b9bbe4ca62ca74c99f5770f5928bf515486f50a2. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/FR05G0040288.
A la gloire de Dieu et du Roi: Splendeurs de la musique sacrée sous Louis XIV
Le Grand Orgue Cavaillé-Coll de Saint-Sernin de Toulouse
Couperin: Messe pour les paroisses (Les indispensables de Diapason)
de Grigny: Messe: II. Gloria: No. 9, Dialogue II
L'Orgue Jean-Pierre Cavaillé à l'Abbaye de Gelonne de Saint-Guilhem-le-Désert