José Gervasio Viera Rodríguez (27 February 1948 – 28 October 1990), also simply known as Gervasio, was an Uruguayan singer who achieved popularity in Chile in 1983, when he won the international compe
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 0xfc1eac3a11565f5a783e1de64bd7da0f46b79cf6ed586df53f592f3d9cd794bc. 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/0ee4bae6-864a-4be2-ad55-e025ed6ff10e.json and https://artists.proofprofile.net/proofs/artist/0ee4bae6-864a-4be2-ad55-e025ed6ff10e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xa6bf4097ca77af619941a090ffe99749e20e47330e2d5703eed1dd6223f59de1. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USV351331545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc42d52b3b2461c104589d7ceffaf6d0886e512aff1f9ad702a6aa10437ff40a4. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USV351331547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7246f562dd8c5ba65e0230d0ae0242d736e8b58730085c7a1da60dac93254a03. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/USV351331549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb3744450e555a4ca0d42332d3e838016de79a0a1a75a00a271196302c9708b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ES71G1942336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dea865919e0ba5ff944ce5ff7ef28f8f41d31f7eb046de39615e2571d1c10c8. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:35:52Z), 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/ES71G1942338.