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 0x27565fc7f77cc3f8075e41f0dd20488ae89bba4df9c051f09ba70ee10ef77761. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0d3c9c26-b4d0-48ea-ae5e-cfa6a58fb765.json and https://artists.proofprofile.net/proofs/artist/0d3c9c26-b4d0-48ea-ae5e-cfa6a58fb765.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Oboe Concerto in C Major, K. 314: III. Rondo (Allegretto) - Cadenza: Randall Wolfgang
Mozart, W.A.: The Wind Concertos / Serenades / Divertimenti
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 0xb86d34fad5bc177ba30f4673b39a23dc93b74334a4c7e6e195edd8d60221abe9. 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/DEF058703171.
Oboe Concerto in C Major, K. 314: I. Allegro aperto - Cadenza: Randall Wolfgang
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a86946e22fd200813157c8f92daed4ec5752829c39d767fe70325ac8641601d. 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/DEF058703172.
Oboe Concerto in C Major, K. 314: II. Adagio non troppo - Cadenza: Randall Wolfgang
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f502213042d1c4479b53c463412082af1d107dfa7630fa7bd5cfae380b2f955. 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/DEF058703173.
Mozart: Horn Concertos Nos.2 & 3; Oboe Concerto; Bassoon Concerto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a86946e22fd200813157c8f92daed4ec5752829c39d767fe70325ac8641601d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEF058703172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f502213042d1c4479b53c463412082af1d107dfa7630fa7bd5cfae380b2f955. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb86d34fad5bc177ba30f4673b39a23dc93b74334a4c7e6e195edd8d60221abe9. 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/DEF058703171.
Serse, HWV 40 / Act 1: "Ombra mai fu" (Arr. for Oboe)
Orpheus Chamber Orchestra - Baroque Highlights
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0721fedc8f7695c16e947e1f65c98a85db9302fb8c45d2696d213ec198653a9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEF058902800.