thumb| Romain Leleu (born 7 November 1983) is a French classical trumpeter. He is the elder brother of tuba player Thomas Leleu. Life Born in Lille, Leleu was elected révélation soliste instrument
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 0xd891497d7c09acb9f801b28e24130facb7e856963cd3c70b57af163d01ed37df. Chain 2 (Bitcoin): anchored in block 953614 (2026-06-14T08:40:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/15de7c39-ecb5-430d-8258-ad166ac48eec.json and https://artists.proofprofile.net/proofs/artist/15de7c39-ecb5-430d-8258-ad166ac48eec.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Hummel, Haydn & Neruda: Trumpet Concertos
Trumpet Concerto in E-Flat Major, Hob.VIIe:1: Trumpet Concerto in E-Flat Major, Hob.VIIe:1: III. Allegro
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 0x95092e73fba08e19e74dbfeabc6d6bbd4c03f7c7df283ee18aeb236e952c2858. 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/FR0V61102509 — a six-check JSON result.
Nacht und Träume, D. 827 - Arr. for Sextet by R. Leleu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x006109fe412a3e67ea5c62a73819e30f24c6fd4764b0450194aa41116954e717. 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/FRPZ92411620 — a six-check JSON result.
West Side Story: Prologue - Tonight - Arr. for Sextet by R. Leleu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28a3aa182abb0a2444b9f53cc8d9fbe10256d2521e124401de92433204352d0f. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/FRPZ92411630 — a six-check JSON result.
Round Midnight - Arr. for Sextet by R. Leleu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d360495068099369ba8e7de667db1de5a9f69cc13a1d8a8bfd7f20d15f8230. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRPZ92411740 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x789d240f17513a1ca8f60bef2e7c86e69a1d3310bec71957e28addfce98adbc4. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/FR7JM2108011 — a six-check JSON result.
Les Demoiselles de Rochefort: Chanson des Jumelles
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66803c5ddd1cb0b404f85e1e75abbde5bc41e633cc2791fde4eacff452b8912e. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/FR7JM2108021 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb058a9ab83bf9bfab8c49d50c2acdb2f6356b5ef43ab1a1979416bd86cccab. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM2108041 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4588d52b4e87c9062f60a6ee15d6bd87ce9b8ad115516c80a9fd1015014a6e7. 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/FR7JM2108051 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c8d0a1fc9e741c7ac9f56ca54417c9ef96f89bb08a1492760ab0adb52375127. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM2108131 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7058220a649d95345af137e15c28bdf5539a06d4779003b650293fb30f778162. 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/FR7JM2108160 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa26e2741e411d1da3f630375459e893f07ed55633b071e1d0e55f763c19b73. 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/FR7JM2108170 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8e0b9a85404f4dab50031a9f9a4d3e85e7689220140841e4398cd6463aa182e. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM2108190 — a six-check JSON result.
La Javanaise (Arr. for Trumpet & String Quintet by Manuel Doutrelant)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ae70e4108611d546b967bed381dc593e41457a180366bfa89e4584f6e59306. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/FR7JM2164050 — a six-check JSON result.
Howard Griffiths: Dmitri Shostakovich, Jazz Suite No 2
Jazz Suite No 2 (Suite für Varieté Orchester): 2. Tanz
Brandenburgisches Staatsorchester Frankfurt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd7543883d4e3df1284ed6288d34a5d4170ca134ab8268c377c3634eed8e39c. 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/DEN421816002 — a six-check JSON result.
Jazz Suite No 2 (Suite für Varieté Orchester): 3. Tanz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7373038a39b7e81112ffc48559e1e59f1f75c57a4841e0f51305afa776eddf88. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DEN421816003 — a six-check JSON result.
Jazz Suite No 2 (Suite für Varieté Orchester): 5. Lyrischer Walzer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceaa6e8bc7a550f5dfb59de71ab9c21b38a226fd1b7ab8c6abbcebfa056f5c41. 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/DEN421816005 — a six-check JSON result.
Jazz Suite No 2 (Suite für Varieté Orchester): 6. Walzer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ba78296d6dfab23d1ea49025dd132817ad7e9e4d82f6104595a9033be115360. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/DEN421816006 — a six-check JSON result.
Jazz Suite No 2 (Suite für Varieté Orchester): 7. Walzer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f6659f15399f689733023ea5b4329aa4f11de709a07d115645998ad6b8a1da. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN421816007 — a six-check JSON result.
Jazz Suite No 2 (Suite für Varieté Orchester): 8. Finale
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f410c708a918709f00c649cb9337f57cc8fd62a50225e09690d4e5c7e84c5ca. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/DEN421816008 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd65ff79eb921c6242ba2c9b5336fbba013872e96f63b0e57c09826143b00e46. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FROV61511401 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1135f83b3f3f3c97932c94990640e8a7d4e7ebd3f69d5545b2357f74763bf41. 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/FROV61511402 — a six-check JSON result.
María de Buenos Aires: V. Fuga y misterio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d7bd001988f8096bb5ee838336f6f226bee268c7c5aaaa76d850f8387741e9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FROV61511403 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1f80ee106b965faea2d7b32028148f1d30898855c2aaabfba338e140cecd18. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/FROV61511404 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd54ea8983a6374de59214dfaaf69348bb3a9b750fd2ef8f41e9a3beb8f0f05bf. 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/FROV61511405 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57ee76703ffcd53f5a5e4bd75a2e9260f8f58f3ab1ae06ba61c6f167b39377e0. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/FROV61511406 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d320b98966fe505b863cbe653ea6f747a49f815be3f8ab47690fa85fb0503f. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/FROV61511408 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cc70f6920c810d57dc4258994caf75ee4fd2f7419fec4dffbd565a33ffd83d6. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/FROV61511409 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0215171a9c49f80c9dbff16b3df1d4f2571b9447d381eede84281db08c7a812f. 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/FROV61511410 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf0afd95f6f7835f856335597ce61dfe9c0b64a7b656eaa05c95eee84e38d37. 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/FROV61511412 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9022e72d075688bc1b7b6c034e69bb1416c785ed1758cb130568fd78f070ba6f. 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/FROV61511413 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc76021143e87a98eb747e801a819b30487f25d6f72c32c6c414436dc8e3206eb. 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/FROV61511414 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5245670bc35bfb7bb456f1c25865867259257a4c89afd7e1206f686853deefb. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/FROV61511415 — a six-check JSON result.
Prague, Paris, New-York (World Premiere)
Orchestre des Pays de Savoie: Concert Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70add5e29e2037a60665bbb88ceec03cde1e50b4f27c00b86cdf2a01d6d0e43f. 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/FR0V61205209 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd762c844be80039edec7d95700e84479fa7ebec1650d04a8ffa60e0a052cacb2. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/FR0V61205215 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3f6a7d8ea37d26b55da96361a663bded1c58c3ab66724f6f26cf97066556b1b. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/FR0V61205220 — a six-check JSON result.
Concertpiece No. 2 pour trompette et piano, Op. 12
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e9013919f3e1a4f82ba90e5c64b2b0da8b9048afcf490c23c45120f38fa9822. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80803530 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84191ff4bcfb8c631d2cac44ada3dcee596410a38c1c53cc151235132e976c4b. 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/FRPZ92411750 — a six-check JSON result.
Mancini: Breakfast at Tiffany's: Moon River
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c8d0a1fc9e741c7ac9f56ca54417c9ef96f89bb08a1492760ab0adb52375127. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM2108131 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0caa79c2edd6cdcb81f6fc9d00fd5989f3f89a11f6d01469a590b27a861ea2bc. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM2108031 — a six-check JSON result.
Maalouf: Dans les forêts de Sibérie: Baïkal
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6298cd3c67c6e7aacbd820c1ce3610a348cc54d4f0604e0fb343523f441e08bf. 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/FR7JM2108061 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f3c67c9bbfa359870262d9e5b74dddbb3bfaee650794cc0bf07e343bf42eec. 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/FR7JM2434010 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb92eda4088ca476cf159b4219bd9514d360f8a5cd5ea2a4fcb13fde62b657422. 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/FR7JM2434020 — a six-check JSON result.
3 Preludes (Arr. for Trumpet and Piano by B. & R. Ridenour): No. 1, Allegro ben ritmato e deciso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1567339c2c5370a1ad9d6577f5b988b05b6ba90931179fee0aed0c2889961ab9. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/FR7JM2434030 — a six-check JSON result.
3 Preludes (Arr. for Trumpet and Piano by B. & R. Ridenour): No. 2, Andante con moto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b0542e29442b7201e9aa0dc83e28d245c5e0c52435fe0ddcfaec367d3bf3f4a. 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/FR7JM2434040 — a six-check JSON result.
3 Preludes (Arr. for Trumpet and Piano by B. & R. Ridenour): No. 3, Agitato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc054360fbeeaf0dd841842c025e765778e3b3962076220bc73b9402bb6180660. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/FR7JM2434050 — a six-check JSON result.
Vocalise-étude en forme de habanera, M. 51 (Arr. for Trumpet and Piano by Romain Leleu)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab7b8d58a3ee66c7731656be309734137a27311b7096484eff4516c1844a43d. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM2434060 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3a6ccd624206ba84f6c077586c0f281b17f45c74bb57f3f210b0dc337ebc9dc. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/FR7JM2434070 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6146c169d78d318c06b7c125f2f0d4a7a0646e2be233d587f5ad208fcf6ceac7. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM2434080 — a six-check JSON result.
Sonata for Horn, Trumpet and Trombone, FP 33a: I. Allegro moderato. Grazioso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1cc344a9dc8ee4b06cb62a555e4122868acfef0d6f4c38b39470dce36082db8. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM2434090 — a six-check JSON result.
Sonata for Horn, Trumpet and Trombone, FP 33a: II. Andante. Très lent
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de1f6a8d5fae9a98646d9a66e0ce0a618b6e60809e9d4a8b7fec180db8fecec. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM2434100 — a six-check JSON result.
Sonata for Horn, Trumpet and Trombone, FP 33a: III. Rondeau. Animé
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x528bfd7b296417d68313db2e12a47667c2ed9b4257462295cc424da9e699b5fb. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM2434110 — a six-check JSON result.
Children's Corner, L. 113: No. 6, Golliwogg's Cake-Walk (Arr. for Trumpet and Piano by Manuel Doutrelant)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13bbcaa434220a463705e519d18502abfa7b72ee9c6edf3245a9d27c54b5acf4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM2434120 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa82acfa509993ed6f2ffffafdb634d1f8253758d935ad57d55e9b1702c9c6c80. 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/FR7JM2434130 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8831427d4d220b32dc302a9dc3596588af14fe247252eae2862a8b21f9a43389. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM2434140 — a six-check JSON result.
Someone to Watch Over Me (Arr. for Trumpet and Piano by Joseph Turrin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77ab4b607fb23fd78777e99cd6b3fc1b0b4ce8bede78f9d7e04d9c0910c6dccf. 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/FR7JM2434170 — a six-check JSON result.
Orchestral Suite No. 3 in D Major, BWV 1068: II. Air (Arr. for Trumpet and Tuba by Romain Leleu and Thomas Leleu)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a9d74daae4d3f9d8b0faa8560dbcdb7d9890bf3d9e1074931f549cf3d0a0bce. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/FR3Z52300271 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5deba7cb83895edfa1dbfeca0141c6d54e2aaff528c846011d365887f2eea6c2. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/FR3Z52300272 — a six-check JSON result.
Histoire du Tango: I. Bordel 1900 (Arr. for Trumpet and Tuba by Manuel Doutrelant)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9ce021672a654652fd0b87d1b187022341da8608e370dcf78927e8fb5bf0671. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/FR3Z52300273 — a six-check JSON result.
Manhã de Carnaval (Arr. for Trumpet and Tuba by Manuel Doutrelant)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d22675dbddbe6507be74e912e3a96891a5b64d0a169a371426882bd160591a4. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/FR3Z52300275 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe83095ab2c7f358760b1422be4b3cd4d757d0d89f44f8c53859ce68fa6a4b71. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/FR3Z52300276 — a six-check JSON result.
El cant dels ocells (Arr. for Trumpet and Tuba by Romain Leleu and Thomas Leleu)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ea5923932b5c209a351273bbb7c9c86d0dd4d94d815c243ce4d64862e011a46. 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/FR3Z52300278 — a six-check JSON result.
8 Pieces, Op. 39: No. 1, Gavotte (Arr. for Trumpet and Tuba by Manuel Doutrelant)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd82c5cf67b02d3fb9e77fae7565e1376b52f653e63f5ad1499fc0db27cff6fd3. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR3Z52300281 — a six-check JSON result.
Interlude No. 4 (Arr. for Trumpet and Tuba by Manuel Doutrelant)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeda822b3be73e5af70ce1af5bb60c9d842c33796f5395cf5411a9622434679c7. 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/FR3Z52300284 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcafa3cf097a90cb3663ef3f97844bc83710e7ddd7ddddd4022597c5cb20e49a3. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/FR3Z52300285 — a six-check JSON result.
Gershwin: 3 Preludes (Arr. for Trumpet and Piano by B. & R. Ridenour): No. 1, Allegro ben ritmato e deciso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1567339c2c5370a1ad9d6577f5b988b05b6ba90931179fee0aed0c2889961ab9. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/FR7JM2434030 — a six-check JSON result.
Couperin: Livre de clavecin No. 2, 6ème ordre: Les Baricades Mistérieuses
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d22675dbddbe6507be74e912e3a96891a5b64d0a169a371426882bd160591a4. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/FR3Z52300275 — a six-check JSON result.
Concerto n°1 pour piano, trompette et orchestre à cordes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b6d8e71d0f8d3c3cbd4e153a4597294fb6a903b95461924098df17da8e2e48. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80961610 — a six-check JSON result.
Outrageously French - Wind music from France
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0646779b45e0d472ec6a34c693c64396a81973dc5bb014a447d6c8915d0c1161. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/FR9W11929519 — a six-check JSON result.
Jean-Baptiste Robin: Fantaisie Mécanique Music with Organ