Pachu may refer to: People Pachu Ojeda (born 1991), Spanish woman footballer Pachu Peña (born 1962), Argentine comedian and actor Pachu (footballer, born 1986), Equatoguinean woman footballer Mar
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 0x55c01880023650c860de0762f804c57c3c2ae6f1c71d11239ff7f3c77a4295b3. 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/0eee0bd4-93f8-4d2b-a4c6-1d1e400b27bc.json and https://artists.proofprofile.net/proofs/artist/0eee0bd4-93f8-4d2b-a4c6-1d1e400b27bc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).