1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xb85db1888c64ce8f2cbdee8d68c7317044a50bcef9c72f3e85ea8cb7319f68bc. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a75e7518-b20a-4dd7-8838-4ceac547a889.json and https://artists.proofprofile.net/proofs/artist/a75e7518-b20a-4dd7-8838-4ceac547a889.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
La Lettre à Élise, WoO 59 (Arr. for Jazz Piano)
La Lettre à Élise, WoO 59 - Arr. for Jazz Piano
Piano Sonata No. 14 "Moonlight Sonata", Op. 27 No. 2: I. Adagio sostenuto (Arr. for Jazz Piano)
Piano Sonata No. 14 "Moonlight Sonata", Op. 27 No. 2: I. Adagio sostenuto - Arr. for Jazz Piano
Symphony No. 9, Op. 125: IV. Presto "Hymne à la joie" - Arr. for Jazz Piano
Symphony No. 7, Op. 92: II. Allegretto - Arr. for Jazz Piano
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 → block OTSBitcoinBlock must exist at that height 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 0xfce9d8f1a2634d4fb0bd92b3a2b902d72edef3f549346e812e7bb636e2bfaebe. Chain 2 (Bitcoin): anchored in block 957965 (2026-07-14T07:07:52Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR0GK2100024.
5 Scottish Songs, Op. 108: No. 13, Come Fill, Fill, My Good Fellow! - Arr. for Jazz Piano
7 Bagatelles, Op. 33: No. 1 in E-Flat Major - Arr. for Jazz Piano
Theme d'Ulysse : Un héros se conquiert lui-même
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f721ba3fed06ea4612d1ad2de9b3e84f311714fa461dc77edd94533742e60d. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/FR0GK2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3577ac26dc810113a9686899f69efa380451e32b431ecceb8e365866177d9e2. Chain 2 (Bitcoin): anchored in block 957576 (2026-07-11T14:19:48Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR0GK2400007.
Theme d'Ulysse : Vers de nouveaux écueils
Theme d'Ulysse : L'éternel et impossible retour
Life on Mars (feat. Paul Lay, Sylvain Romano & Donald Kontomanou)
David Bowie in Jazz (A Jazz Tribute to David Bowie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf4afeeaa6a93ca75453caeef05e053daafd51ed7d7123c2c0b56506d2574920. 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/FR9W11508140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b1841fad3bacd27760a5173ccfbaeb6756a3826a8def20dd6f550977953698b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FR0GK1800002.