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 0xc18661c79782689a82cc40c4e8918217fd05b76025319132ec7b53124d721d73. Chain 2 (Bitcoin): anchored in block 953846 (2026-06-15T22:48:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/00b0bce9-e8c0-415a-b583-4bb7126b90de.json and https://artists.proofprofile.net/proofs/artist/00b0bce9-e8c0-415a-b583-4bb7126b90de.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
J. D. Braun: Sonatas for Traverso Flute & B.C.
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 0x83c066a28f31abf1b5b69ce901cf58c52124ebc6cf15d58e62124966ef3437d2. 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/CAJ721267313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7218e30a20a4839a47413884f3ed0331c3ab2f066c2c611c58d9dfa7f83e2c3. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ721267320.
Jean Daniel Braun: 5 Suites for Solo Cello
Voice of the Soul - Flute Music by Jean Daniel Braun
Flute Sonata in G Major, Op. 5, No. 4: I. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93945bacaa91e336b1d7b394fbca4aef11d659a017cc73dd476c563542d93c83. 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/DEE471700229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b875ef08eb7d1a5832f6f8de58b4f401fb3d94aa53bea2a8d40b4dc92ad7bd. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ22B1744615.
Schneider, Michael: French Recorder Music, Vol. 2
Recorder Recital: Schneider, Michael - Handel, G.F. / Telemann, G.P. / Barsanti, F. / Scarlatti, A. / Sammartini, G. / Mancini, F. / Castrucci, P.
Troisieme Livre de Sonates, Op. 3, Flute Sonata No. 3: I. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579bcc7cc171fe6936213a5370b98d370887a5080372334b93b2d73a6c5fb75c. 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/SEAEH9545010.
Troisieme Livre de Sonates, Op. 3, Flute Sonata No. 3: II. Largo poco andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e7277c46bb83296be27225c008e9d05cbc5add5fa301e03b50e4db68a0f2e3. 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/SEAEH9545020.
Troisieme Livre de Sonates, Op. 3, Flute Sonata No. 3: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x918735cd60bd5981e30709d035e10b10a2441a0b4c748f4dd25145566c6c6305. 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/SEAEH9545030.
Oeuvre Premier, Sonata Terza: I. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17be99518b78bf20cba928d2f1d0029eae1ec69f5bdf3d090d9a6c4552b4809d. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEH9545040.
Oeuvre Premier, Sonata Terza: II. Corrente
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x942c0cb725b775d6f8d292f4fd4ad3e26f6f5c9031021e77e540aae42f293eec. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/SEAEH9545050.
Oeuvre Premier, Sonata Terza: III. Gavotta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac12e13d873dbcb5378c38a282f7cd674eb8651f739677a33f5f15e0b111abbb. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEH9545060.
Oeuvre Premier, Sonata Terza: IV. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5333945c356748ae119a3f587db77157a9ef267c87f69d41350767caae7d62c. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/SEAEH9545070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b88e78385854e6f84f14226bc2c4ec1b9896679d9696f64e9f5d7c2ef9c4d20. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEH9545080.
Flute Sonata in E Minor, Op. 9, No. 2: I. Andante (Arr. For recorder)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c588e342aae1508aa25b7be868197e8adc922b776537a342757679c739fd0d7. 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/SEAEH9545090.
Flute Sonata in E Minor, Op. 9, No. 2: III. Sarabanda (Arr. For recorder)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeca8c6308bce8ebfe518ddd2098c8eed741f6c263a1f36c9a5253455cb7f66e. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEH9545110.
Flute Sonata in E Minor, Op. 9, No. 2: IV. Minuetto (Arr. For recorder)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d185322d76ab9b28c74deb693b092ae7d4cba10e5118fc8f6280b5e2d6afa0. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEH9545120.
Deuxieme Suite in B Minor: I. Prelude. L´aime de Mr de la Barre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc6f2c6504e10fd567bc3984abc6f1cc6da83d58700f374a6fd430672d383cea. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEH9545130.
Deuxieme Suite in B Minor: II. La Chauvet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c17900a8b8a79557926e469f32dfdf97ad34da384d6fde8fc664211c6b1e1a0. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEH9545140.
Deuxieme Suite in B Minor: III. Sarabande. La Descosteau
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59139980e61a2edb92d393e0e3293e170d35b540648390891029ff3c93864dd6. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEH9545150.
Premier Livre, Quatrieme Suite: I. Prelude
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf13f5c277abfb218f87c27b309c725ae78ea17d9bd134346d0bfc6490e5e524c. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEH9545180.
Premier Livre, Quatrieme Suite: II. Allemande La Fontainebleau
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb74e5cab1d7e1e5931d88128a1406542d5035b9317bf487cbaad7d8bc7a9607. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEH9545190.
Premier Livre, Quatrieme Suite: III. Sarabande Le Depart
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x977347a22474afb4651b0ac6304f12f09399293a8c4f6ba795e1d0940879fb03. 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/SEAEH9545200.
Premier Livre, Quatrieme Suite: IV. Air Le Fleur
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca5daef1b1f981e6b6ade6e828ecb793c19de578f9075c0e69ba75bc1687356. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEH9545210.
Troisieme Livre de Sonates, Op. 3, Flute Sonata No. 2 in B Minor: I. Andante e spicato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x166d2259eb5d8dde88c97049f5fed0147b20752d093ab45c06135386225eff17. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/SEAEH9545250.
Troisieme Livre de Sonates, Op. 3, Flute Sonata No. 2 in B Minor: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61b25cb31a50431273f2bfbe51214579ff6dc18d2b8cd92a117bab58dc5e9094. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEH9545260.
Troisieme Livre de Sonates, Op. 3, Flute Sonata No. 2 in B Minor: III. Minoetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f8343568260b6cbf1f0228bcc8e41210bc3595ae515fdb3f323cd44682bd18c. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEH9545270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8549c29eacb2b75367a5eb147f18e985cd5a1a1ff174f3dfa92c1e2aca67cc2c. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11609374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c6614c12c96cbdd75a0d4fdab04fc11e966b2b197d99deec70ec6ace0f919e. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/DEE861600668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x489864400507c0fd9cf9ab7ac0753885ad1ec67c2ab5b165c2b53e10a291c1ab. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE861701296.
Bar-Oct: 12 Baroque Masterpieces for Piccolo
Divisions and Sonatas - English and French Music for Recorder and Lute