Vava may refer to: People Vavá (1934–2002), full name Edvaldo Izidio Neto, Brazilian football striker Vavá (footballer, born 1929), full name Walter José Pereira, Brazilian football striker Vavá (
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 0xcbc05d716e983bc279d2ce3c9823a430d1ad979f1f0abe117d4281d3363be871. 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/3e17eb65-1ca5-4d9f-bdb3-9081c8f42c30.json and https://artists.proofprofile.net/proofs/artist/3e17eb65-1ca5-4d9f-bdb3-9081c8f42c30.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Les animaux font du sport (Ponga, le pingouin judoka)
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 0x87e36bca76262c796e4116bfc08bc9510eb08e4e0789a9481ca52d9ed10a8e0c. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/FR10S1772742.
Irma - L'autruche championne de course à pied
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb1873ae029f5057df6fc0493513b50689fb26af020d6ecf88c6910d4dcaa752. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FR10S1772743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd0d69c3d9a2af4c40faf34af6b4cae340aa97f15980d6b03ae261ef86d5a50. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/FR10S1772744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x508197f81b4e3889ea3981f4406fddded6d3f47a8b383195ed0cd37f8c8a1017. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FR10S1772747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffeb5ff5c1420be8b3e396c3d7546b09f3aed7706d3f660d0cac2796e22216fe. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/FR10S1772748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b71e427f18fa9587e10ae10c59c25292468695cfc42c21a92577c432e4c43d. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/FR10S1772749.