William, Bill, or Billy Conway may refer to: William Conway (Arkansas judge) (1805–1852), Justice of the Arkansas Supreme Court William Conway (cardinal) (1913–1977), Irish cardinal of the Roman Ca
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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dbba21ee59b2e2ed4ca80c5769f8126c3442038968ff2e5b864fd83dadc632e. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3505aa14-61a3-4621-91ae-102482d779e7.json and https://artists.proofprofile.net/proofs/artist/3505aa14-61a3-4621-91ae-102482d779e7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Rachmaninoff, Lutosławski & Webern: Works for Cello & Piano
Britten: Lachrymae for Viola and Strings, Op. 48a
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb679bba996756f23b9199e01512c7b3268ebb82149407f4ce41457e3147290. 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/GBELP0400145.
Octet in E-Flat Major, Op. 20, MWV R20: I. Allegro moderato, ma con fuoco
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f291cdc023b9de916e7ebe9ca73d11dd6fa0c01186415bd80d05bf0eb749d9. 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/DEN960700471.
La clemenza di Tito, K. 621 / Act 1: "Ma che? sempre l'istesso" - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d3385621ef742885c271b5478bf01e4339ccb413fd0740733a217818bc122e8. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/DEN961731502.
La clemenza di Tito, K. 621 / Act 1: "Amico, il passo affretta" - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a876416734ffa23aebbbc575396e00dd15d0aea071dfbfcf7b50178e33fad46. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DEN961731504.
La clemenza di Tito, K. 621 / Act 1: "Amico, ecco il momento" - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3901775a2fae0b39b4d381112312dfd72273339d39da15af01613a05bb4e1f0e. 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/DEN961731506.
La clemenza di Tito, K. 621 / Act 1: "Te della patria il Padre" - "Basta, basta, oh miei fidi" - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bfee40d7f6ff38bfbac9d3ed7e026d9e3cd02e940e6b8b51477a135e48f3a16. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/DEN961731510.
La clemenza di Tito, K. 621 / Act 1: "Adesso, oh Sesto, parla per me" - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc044beb9106f6232efc4ae81f81d8d27946a3f193e0d81b69d83d625c797a9. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/DEN961731512.
La clemenza di Tito, K. 621 / Act 1: "Non ci pentiam" - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61642e435d55da4e7effb872ec2cd67f0ce61b382142e21139c6e48d793c62fd. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DEN961731514.
La clemenza di Tito, K. 621 / Act 1: "Che mi rechi in quel foglio?" - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0415a640f3550a3e9dae4dba22b41e878b1e35ecb8abcc9219e302d7b559730e. 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/DEN961731516.
La clemenza di Tito, K. 621 / Act 1: "Di Tito al piè" - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e4e6937529dba095cbc3d01ca27bf471baddc3e717709eb6f1fb5c44f52dd13. 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/DEN961731517.
La clemenza di Tito, K. 621 / Act 1: "Felice me!" - "Ancora mi schernisce?" - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x349fc82af9c2ee0d5eac37ee755c41be84aa277a33ca30649b0ecdcf0cb1230a. 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/DEN961731519.
La clemenza di Tito, K. 621 / Act 1: "Vedrai, Tito, vedrai" - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30020961658d805b73372c417cf928a59166f55cb061c251ac9ed96df62c6a42. 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/DEN961731521.
La clemenza di Tito, K. 621 / Act 2: "Sesto, come tu credi" - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f4b2916b749b0f1b024e7fb337683fe05b47f6c1be69ff17768db99074a8048. 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/DEN961731526.