Silvia Abascal Estrada (born 20 March 1979) is a Spanish film, television and stage actress. She landed a breakthrough role in 1995 sitcom Pepa y Pepe which advanced her career. She has since featured
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 0x75742c7230821597a1b7982964318f12540837fd30b5138570d4a64f8b680a63. Chain 2 (Bitcoin): anchored in block 954555 (2026-06-20T12:10:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/af65e97b-7b71-45d6-964d-2c964bfbd368.json and https://artists.proofprofile.net/proofs/artist/af65e97b-7b71-45d6-964d-2c964bfbd368.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).