thumb|right|250px José Ramón Tebar Sáiz (November 6, 1978, Valencia, Spain) is a conductor and pianist, currently Principal Conductor at Florida Grand Opera.FGO appoints Ramón Tebar as music directorf
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 0x16dc50f1ebccec4c6d3801fb73b3b3512d2d755faaa60d0369ff0a147783c133. 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/a3d4c67c-5451-43f0-a02c-fc3d7901e2d9.json and https://artists.proofprofile.net/proofs/artist/a3d4c67c-5451-43f0-a02c-fc3d7901e2d9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Aida / Act 1: "Se quel guerrier io fossi!..Celeste Aida"
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 0x45238501dbd9f2e2678a8263dd51d0958b7ad07887122137e39b81e7d0d61fa2. 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/GBF071700530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b4f481f78f419ec9279b00197befd16510613a7f7db40e3ad96a404553a6063. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GBF071700540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e766b780414e82b90b0037fe6f280bafc2d582f2e5dbe0339120fbfee95329. 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/GBF071700550.
La forza del destino / Act 3: "La vita è inferno...Oh, tu che in seno agl'angeli"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28a269f439c0322d6f5b8252ed14c3049eb64afa3bcdaaf15047e66e12727eb4. 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/GBF071700560.
Don Carlo / Act 2: "È lui! desso! L'infante!... Dio, che nell'alma infondere"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecd09e56ec40106c92c7831068cc34f18bedd16cc98622b7f27343eb19e68163. 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/GBF071700580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563110349333ab2e11837caf2c33dd73d17f84bb37ea6098866823d798538ab8. 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/GBF071700590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62955a28bae1445dca7617fdaa363cbbc884c5ef90ea98648314faeb65521e8b. 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/ES5701700137.
Verdi: Aida, Act 1: "Se quel guerrier io fossi!...Celeste Aida”
Verdi: Il Trovatore, Act 3: "Di quella pira"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e766b780414e82b90b0037fe6f280bafc2d582f2e5dbe0339120fbfee95329. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBF071700550.