Orquestra Sinfônica do Estado de São Paulo
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 0x71c034734aa7322e20c1b655db23d08e16a6e684d9f2e75ce6abe7dc48d642e0. 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/49a00081-ad8c-4295-b810-da96766ba7e1.json and https://artists.proofprofile.net/proofs/artist/49a00081-ad8c-4295-b810-da96766ba7e1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Orquestra Sinfônica do Estado de São Paulo e Banda Mantiqueira
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 0xc6b7a56f89dc633a4b0c4585b71114ae09b143e644c08f2e673aaadc64353a16. 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/BRPUI0500526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa47ce1c06e058406eec202d0f2878d306d3840174be84a7cdb218b74787884ea. 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/BRPUI0500527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56440ce74ae75eee1fd8ae35637e1734a65045aa804d9358ff30651907c2fad7. 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/BRPUI0500529.
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
Hime: Concerto para Violão e Orquestra - Ayres: Concertino para Percussão e Orquestra
Concerto para Violão e Orquestra: II. Ibéria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x620e2fdbd660fcb9c77a6fe5d72c7f89dbc93964fd5d434c03195070f81e1f79. 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/BRPUI1000322.
Concerto para Violão e Orquestra: I. Modinha
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13ca7c1f963d7378876a76e4f211ba45d1b3b1caa639035016651642cc2a4006. 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/BRPUI1000321.
Bernstein: 1600 Pennsylvania Avenue Suite, Slava!, CBS Music & A Bernstein Birthday Bouquet
Kinderszenen, Op. 15: No. 7, Träumerei (Arr. H. Villa-Lobos for Choir)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57ebd2ae0fee302bdc6d11c5beb8df318595be4d3221f7e6f682f899347fa83d. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/HKI192027204.
The Essential São Paulo Symphony Orchestra
Dvořák e Bruch: Concerto Para Violoncelo e Orquestra em Si Menor, Op. 104 e Concerto No. 1 Para Violino e Orquestra em Sol Menor, Op. 26 (Ao Vivo)
Baal Shem (version for Violin and orchestra): III. Simchas Torah (Rejoicing)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21cfa1423ccb9f94036d7d5e24094e668c877ff30a043090303cdce95e15553e. 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/SEAEQ0850050.
Liszt: Totentanz / Piano Concertos No. 1 and 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b51ae9cd1560287e81a7c5e8b9958bbc5737c455972031296c727f4023b950. 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/SEAEP0730020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e52dca22c1841425554a47449db7adf9f6b6295c1edc935194f3e36d705e41. 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/SEAEP0730060.
Totentanz, S. 126 "Paraphrase on Dies iræ": I. Andante - Allegro - Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe675362b0296cd33fb457dd61881d6cf4a5a3c408cac65930a567a67fe46abea. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:53:02Z), 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/SEAEP0730010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x720f0ac1538d8f9829afc9d277477c4e7723fb797bd0180a35da7924c0b58937. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/SEAEP0730030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38f23972c9ba3f1dfa3f33ed6f1b5893cff63814067e51cbc233eacd246af646. 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/SEAEP0730070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf9c7e2dc7bef429e7346d8207b34ee270d178babfc4822974155f25d746e5db. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/SEAEP0730090.