thumb|"M. Lamoureux letting out a fortissimo", by Charles Léandre, 1890s The Orchestre Lamoureux () officially known as the Société des Nouveaux-Concerts and also known as the Concerts Lamoureux) is a
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 0x89fbe0bec438bc33c09189fb660e61c763d27e8e023eedbf947668a422437200. 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/754995b7-f8a6-4b23-b0d7-8563a00f175b.json and https://artists.proofprofile.net/proofs/artist/754995b7-f8a6-4b23-b0d7-8563a00f175b.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Saint-Saëns: Violin Concerto No.3; Vieuxtemps: Violin Concertos Nos.4 & 5
Tchaikovski: Symphonie 4-Borodine: Dans les steppes de l'Asie centrale-Moussorgski: Une nuit sur le mont chauve
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 0x367996ddf3f9ebc15740079a786bae681248d657985d398b0d2b23985c34ae1a. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ395900540 — a six-check JSON result.
Symphonie Op.20, Poème De L'Amour Et De La Mer, Poème Pour Violon Et Orchestre
Symphonies from Dukas, Roussel, Ravel & Milhaud
Mozart: Bassoon Concerto, K. 191; Haydn: Sinfonia concertante; Cimarosa: Concerto for two flutes; Schubert: Symphony No. 3 (Igor Markevitch – The Deutsche Grammophon Legacy: Volume 3)
Bassoon Concerto in B-Flat Major, K. 191: I. Allegro - Cadenza: Edouard Flament
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Bassoon Concerto in B-Flat Major, K. 191: II. Andante ma adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c8e5e724df13e3fd3b5d4cc72f6991d720821a35c295dbbf03f28c7a1e7c59. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF055801332 — a six-check JSON result.
Bassoon Concerto in B-Flat Major, K. 191: III. Rondo (Tempo di menuetto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d4c5b8c2c4d996c7b516b92ac2a682e589891df8545ed43e255b81ae1c57869. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF055801333 — a six-check JSON result.
Brahms: Symphony No. 4; Berlioz: Harold en Italie (Igor Markevitch – The Deutsche Grammophon Legacy: Volume 8)
Haydn: Symphony No. 103 'Drum Roll'; Symphony No. 104 'London'; Webner: Preciosa Overture
Beethoven: Symphony No. 1; Symphony No. 5; Symphony No. 8
Symphony No. 5 in C Minor, Op. 67: 1. Allegro con brio
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Symphony No. 5 in C Minor, Op. 67: 2. Andante con moto
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Symphony No. 5 in C Minor, Op. 67: 3. Scherzo. Allegro - Trio
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Symphony No. 5 in C Minor, Op. 67: 4. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bef32843bd0bd11941e56d7c5b3b933d8ea6438f98d8b44bfe3eb7a3f2dd639. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA505900201 — a six-check JSON result.
Beethoven: Piano Concerto No. 3; Chopin: Piano Concerto No. 2
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National Theatre Belgrade: Great Russian Operas from 1955
Canteloube: Chants d'Auvergne - Chausson: Poème de l'amour et de la mer, Op. 19
Canteloube: Chants d'Auvergne, Vol. 1: No. 2, Baïlèro
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Canteloube: Chants d'Auvergne, Vol. 1: No. 3, Bourrée I. "L'aïo dè rotso"
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Canteloube: Chants d'Auvergne, Vol. 1: No. 4, Bourrée II. "Ound'onorèn gorda?"
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Paganini: Concerto pour violon No. 4 (Mono Version)
Les pêcheurs de perles, WD 13 / Act 1: "Je crois entendre encore"
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