Vilma is a feminine first name. People named Vilma include: Ana Vilma de Escobar (b. 1954), Salvadoran politician Vilma Åhlström (b. 2000), Swedish curler Vilma Álvarez (b. 1970), Cuban softball playe
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 0xac8a8ba4ca24fb2ca52d67b2161e0e946ef349e217675f64dd4b9adf768c9cf5. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0e0be331-5f46-42da-8bb3-ed36a9cd1093.json and https://artists.proofprofile.net/proofs/artist/0e0be331-5f46-42da-8bb3-ed36a9cd1093.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 0xb5afdaaf27c16eecbb910fe91c61c5107c218b7ac9c064df9b017d6ff3aa64fd. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:58:26Z), 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/QZNWQ2536457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1c65cdfa00264df6cd18ee77026cf4e6dfdfb7873f083b0e46f99cb9c37794. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZNWQ2536451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c499f998338d986c53e249e0a6632db91725596c894fc0992f619651d8c9178. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZNWQ2536452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c138c5491d0241909c6d791ecb4769e6713c345c4011a958b2be1bf7a1b141. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:58:51Z), 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/QZNWQ2536454.