João Pedro Silva may refer to: João Pedro (footballer, born December 1987) (João Pedro Azevedo Silva), Portuguese footballer João Pedro Silva (triathlete) (born 1989), Portuguese triathlete João P
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 0x4a79a1d510bed134a8e84ad7f229d8548bc44261c8f7405e8023e55b23fc9c8f. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/59c6a057-3d87-47c5-8f05-40bef2a9dcaa.json and https://artists.proofprofile.net/proofs/artist/59c6a057-3d87-47c5-8f05-40bef2a9dcaa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Portuguese Music for Saxophone and Orchestra