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 0xbffeba57eb502b21699a3f47bcce570c2989fc2c8bb33db6ea0bc88567bdfdac. Chain 2 (Bitcoin): anchored in block 954063 (2026-06-17T07:49:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/47dc5469-2ae4-4cf6-8389-4cc678bd9b7d.json and https://artists.proofprofile.net/proofs/artist/47dc5469-2ae4-4cf6-8389-4cc678bd9b7d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Introduction, Passacaglia and Fugue for the Golden Flower
Three Lullabies: III. In the Innocent Air
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 0xfcc6123b6f2949c6e057a8359a8b9602470281d75db4d75eea0397dfebea1092. 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/USA4R0692602.
Triptych, Op. 102: III. Dreams of a Clown
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b771b7494c841deab21aa6c8977a269e18653c91bbcb614ca1eebea2d542daa. 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/USA4R0692610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04e685ca43ba65b38a7c5bbc1407d860396db2e0f22b6c437b6433b15ad985c. 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/USA4R0692612.
Four Persian ballads:Dokhtar-e Boyer Ahmadi
Four Persian ballads:Pishdaramad-e Esfahan
Four Persian ballads:Kuchalara Susap Misham
Musical Skectches on Pushkin's Eugene Onegin: The Ball
Musical Skectches on Pushkin's Eugene Onegin: Tatiana
Musical Skectches on Pushkin's Eugene Onegin: Ol'ga
Musical Skectches on Pushkin's Eugene Onegin: Quadrille
Musical Skectches on Pushkin's Eugene Onegin: Onegin
Musical Skectches on Pushkin's Eugene Onegin: Mazurka
Musical Skectches on Pushkin's Eugene Onegin: Lensky
Musical Skectches on Pushkin's Eugene Onegin: Theatre
Sonata Concertata, Op. 61 for guitar & violin: Allegro spiritoso
Sonata Concertata, Op. 61 for guitar & violin: Adagio assai espressivo
Sonata Concertata, Op. 61 for guitar & violin: Rondeau
Histoire du Tango for guitar & violin: Café 1930
Histoire du Tango for guitar & violin: Nightclub 1960
Histoire du Tango for guitar & violin: Concert d'aujourd'hui
Lute Suite No. 4 in E Major, BWV 1006a: I. Prelude
Lute Suite No. 4 in E Major, BWV 1006a: II. Loure
Lute Suite No. 4 in E Major, BWV 1006a: III. Gavotte en Rondeau
Lute Suite No. 4 in E Major, BWV 1006a: IV. Menuet I and II
Lute Suite No. 4 in E Major, BWV 1006a: V. Bourree
Lute Suite No. 4 in E Major, BWV 1006a: VI. Gigue
Cello Suite No. 1, BWV 1007: II. Allemande
Cello Suite No. 1, BWV 1007: III. Courante
Cello Suite No. 1, BWV 1007: IV. Sarabande
Cello Suite No. 1, BWV 1007: V. Minuet l and ll
Prelude, Fugue, and Allegro, BWV 998: I. Prelude
Prelude, Fugue, and Allegro, BMW 998: II. Fugue
Prelude, Fugue, and Allegro, BWV 998: III. Allegro
Cello Suite No. 3, BWV 1009: II. Allemande
Cello Suite No. 3, BWV 1009: III. Courante
Cello Suite No. 3, BWV 1009: IV. Sarabande
Cello Suite No. 3, BWV 1009: V. Bourree I and II
Four Popular Persian Ballads: Gol-E-Gandome
Four Popular Persian Ballads: Dareneh Jaan/Ariz Joon
Four Popular Persian Ballads: Leila-Leila
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4d1827a1b5c8b055b52c2fd57132d31a7fb882197380e9cd226c5cf8bd878e4. 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/QMDA71327847.
Four Popular Persian Ballads: Jaan-E-Maryam