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 0x127a30ed2af83f367b1d7c395bc7efa843c1857042fd18bc73f66eb83acec967. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/62609849-29ab-41f3-8a92-81917fdc4fb4.json and https://artists.proofprofile.net/proofs/artist/62609849-29ab-41f3-8a92-81917fdc4fb4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
15 Improvisations, FP 63: No. 1 in B minor
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 0x58a2805333098894d408ab728e1e1e973f6b1aef3beec7d2951475f458c9919e. 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/GBLLH1645501.
15 Improvisations, FP 63: No. 2 in A-Flat Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd549f02a02ed4bde369acb6f73d5a4ee2f5c2b4abd2eb465b1025eedc9ccf65. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBLLH1645502.
15 Improvisations, FP 63: No. 3 in B minor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e3afb29aa4d840c27cdcdba94ef5daf637e223be5ab1c9c804a4c04c433f18. 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/GBLLH1645503.
15 Improvisations, FP 63: : No. 4 in A-Flat Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d7ce5565003d8298e74f1c634c877d084066774f3e4d98747d1e157f656ceab. 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/GBLLH1645504.
15 Improvisations, FP 170: No. 13 in A Minor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd151f3abaff4b0d88516783e1f3852edbb9792affb8b64bfb742773aea66182. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBLLH1645513.
15 Improvisations, FP 176: No. 15 in C Minor, "Hommage à Edith Piaf"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e88b0536b8f1793e047dac4580e78d47c7c9e292e1292fd66aecd6cc4cdd3b8. 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/GBLLH1645515.
Three Novelettes, FP 47/173: Novelette in C Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1638525a7cff62a363cc424329bb9a27411bb0f9c320ca0b30e1e719b0895c38. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBLLH1645516.
Three Novelettes, FP 47/173: Novelette sur un thème de Manuel de Falla
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d696843e81d20623172e1ba1f73e428ef20037d2ed4a9764b1d794385b9148. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBLLH1645518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5941a984419072608ba78405f62e10dd705d4b999b37ec757e1d4de0343a7bb2. 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/GBLLH1645519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca2e07057389b4f74ad0bc034d7b130b553aa9aba641630b4dfecad1436f30dc. 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/GBLLH1645521.
Concerto in D Minor for Two Pianos, FP 61: II. Larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a7d9a3fdba89784c61cf8d9e54a5b08c2cab8383b7b9ee630a1c882e00fa115. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBLLH1645524.
Concerto in D Minor for Two Pianos, FP 61: III. Finale
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecd197f21c78a4e1af2e4655056afa21c4ad7abc8dd74d1d085d61b425d65277. 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/GBLLH1645525.
Bax & Chung Piano Duo: Debussy and Ravel for Two
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a83856c007a41b9a0d0500f3e56867cda2d6738989b869a870ceb24b6680ff0. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLLH1643901.
Preludes, Op. 23: No. 4 in D Major: Andante cantabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4108cd0237eb12d300f98c610ea6ba78ea88c97c8cf131fec8f052e463174dce. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBLLH1126404.
Orchestral Suite No. 3 in D Major, BWV 1068: Air (Arr. Alexander Siloti)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf14684b4af11aab9e37a1587c6a0d97fc3380de9bcdbeaed352d4016fb6de997. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBLLH0915606.
Sheep May Safely Graze, BWV 208 (arr. Egon Petri)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a65562610d13346b4bad405a31b7634e2de42e104cac8fc55fc27ece33a3ad1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBLLH0915605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6da1209542927bec1f407621a1e445d430efd96188687e9a8af315ac4d87edda. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBLLH1336520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e74c8a9065cab8006d8fa655eb35f7756cfdbd9849e5c98027e40c361a2d4e2. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBLLH1336507.
Vocalise, Op. 34, No. 14 (arr. Alessio Bax)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb589e416a8191916d5546d1e626f04811c39ec2e5a4601e256ab1f10db33fe3. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBLLH1230508.
Sonata No. 14 in C-Sharp Minor, Op. 27, No. 2 "Moonlight": II. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a3c1d61aad51a947933b46c6f31f14bc7f3f5566dd6752d55f497fbbfc6765b. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLLH1439706.
Violin Sonata No. 1 in G Minor, BWV 1001: Siciliana (Trans. Leopold Godowsky)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd96cc9c38303aa6779e73a77b2225f75754601145e720c92fac50efd586cf70d. 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/GBLLH0915603.
Violin Sonata No. 2 in A Minor, BWV 1003: Andante (Trans. Alexander Siloti)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d225551058c6d74e0d34ed1143c10164be09deccc80e23d7a540f132d3eb04c. 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/GBLLH0915608.
Piano Concerto No. 27 in B-Flat Major, K. 595: II. Larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x024e572e3d90265082bbabb2c1c0a7f673f9a89ce3656ee4f6b6758852e2b8a3. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLLH1332105.
Stravinsky, Brahms & Piazzolla: Works for Piano-Four-Hands
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6da1209542927bec1f407621a1e445d430efd96188687e9a8af315ac4d87edda. 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/GBLLH1336520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3597298f929690a800abb24e54d8c2e96bb67a8170b7c2a49d813874368e0593. 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/GBLLH1336525.
Prélude à l'après-midi d'un faune, L. 86 (Arr. for Four Hands by Maurice Ravel)
La plus que lente, L. 121 (Arr. for Four Hands by Léon Roques)
La plus que lente, L. 121 - Arr. for Four Hands by Léon Roques
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88a47e2901acfd4dd6b8fbf850dcf476a7169b2a35ebfdd1ece53f07bad176a. 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/GBLLH2478710.
Suite bergamasque, L. 75: III. Clair de lune (Arr. for Four Hands by Henri Dutilleux)
Music@Menlo Live '11: Through Brahms, Vol. 2
Music@Menlo Live, Russian Reflections, Vol. 1
Music@Menlo Live, Russian Reflections, Vol. 7
Camille Saint-Saëns Piano Transcriptions
Ligeti: Works for Piano, 2 Pianos, and Piano 4-Hands
Ligeti, G.: Piano Works - Etudes, Book 2 / Musica Ricercata / 2 Capriccios / Invention
Liszt: Wiegenlied (Chant du berceau), S. 198
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x921e025438db582d7e5e9e640291ea180adf240b3a79e5209bfa4cd3691e42c0. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBQRF1341061.
4 Hours of Soft & Light Classical for Newborns
Music@Menlo Live '11: Through Brahms, Vol. 5