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 0x7795a1ce6f6c603d3b5e0140f39538c5cb94dfcfc8ba8a6d0b61af69fb3fddc4. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8b54afb9-1ca6-4d6b-8fb1-67ab7d03f161.json and https://artists.proofprofile.net/proofs/artist/8b54afb9-1ca6-4d6b-8fb1-67ab7d03f161.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Puts: The Hours, Act 1: "Missus Dalloway Said She Would Buy the Flowers Herself" (Laura, Virginia, Chorus, Dan, Richie) [Live]
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 0x5604d8f64584d474cb500af023d383ab505aee3c6cf3dcf2e02d56184e719cb6. 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/USY3P2308138.
Puts: The Hours, Act 2: "This Is My Partner, Sally" (Clarissa, Sally, Laura, Dan, Leonard) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x203219c7138caa4cea9d58756bce061049a171e84a76677bf178b4231728040b. 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/USY3P2308155.
Rodelinda, regina de’ Longobardi, HWV 19, Act 2 Scenes 1 & 2: Recitative. Già perdesti, o signora (Garibaldo, Eduige, Rodelinda)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe20be19f99af9888b749e1ec5f5bb5a1bc27165689c09c9707eb7fa54cb85a28. 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/GBASH2165824.
Lady Macbeth of Mtsensk District, Op. 29, Act I Scene 2: Ay! Ay! Ay! Ay, besstïžiy, oy, ne ščípli ... Otpustíte, bábu
Shostakovich: Lady Macbeth of Mtsensk District, Op. 29
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x239c99febf5c435df602d2477e94bb609a1e35949e18e2a962919e1141611d25. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEN962435505.
Puts: The Hours, Act 1: "Oh Dan. Roses? On Your Birthday?" (Laura, Dan, Richie, Chorus) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf061c3fb1be6495e7f91d4ada98208a81dc6d4f1add4576ce05fa2f964b8ad97. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/USY3P2308139.
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
Puts: The Hours, Act 2: "Happy My Birthday!" (Dan, Richie, Walter, Sally, Louis, Clarissa, Virginia, Leonard, Laura) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x906f642ad8fad0f5e1248e6ac64ee30127952afa7c962b21e96b6b4dc5e8363a. 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/USY3P2308154.
Rodelinda, regina de’ Longobardi, HWV 19, Act 1 Scenes 2 & 3: Recitative. Duca, vedesti mai (Grimoaldo, Garibaldo, Eduige)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x611e0087bacb9356fb2ef9d08de97fc2101950d7e6e473e6f703ccf0969bcbf8. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/GBASH2165806.
Rodelinda, regina de’ Longobardi, HWV 19, Act 1 Scene 4: Recitative. E tu dici d’amarmi? (Eduige, Garibaldo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x282498561a8cdbfa9e36da9b87026a31913a75e711b336728001f64907a171b4. Chain 2 (Bitcoin): anchored in block 960355 (2026-07-31T05:49:18Z), 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/GBASH2165808.
Rodelinda, regina de’ Longobardi, HWV 19, Act 1 Scene 5: Aria. Di Cupido impiego i vanni (Garibaldo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77bc954660ec1f3834b80368c6cd04c5c919a9481817bdf04ff664efbe27c544. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/GBASH2165811.
Rodelinda, regina de’ Longobardi, HWV 19, Act 1 Scene 8: Recitative. Baci inutili e vani (Garibaldo, Bertarido, Unulfo, Rodelinda)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1690d5a1daa3de2c281c801a1310c3567d79721067c7602fb7298eda7cfc4a2. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/GBASH2165816.
Rodelinda, regina de’ Longobardi, HWV 19, Act 1 Scene 9: Recitative. E ben, duca, poss’io (Grimoaldo, Garibaldo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea75d5dde74672ac105657cf4aff975923d10095c3fb8b0f06bbf4fde67d22df. 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/GBASH2165818.
Rodelinda, regina de’ Longobardi, HWV 19, Act 2 Scene 4: Recitative. Massime così indegne (Unulfo, Garibaldo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc73cee7115d20dcae64a6de8e8882f2dec4dd0370c894ff88a8a0c41bf8b88. 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/GBASH2165830.