Esto may refer to: Esto, Florida Esto, Kentucky Global Estonian Cultural Days, abbreviated ESTO in Estonian A brand name for Escitalopram An Estonian person Esto, a newspaper published by Organizació
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 0x7a510c22f75c070f37185d42cfd07840a2c694c69f67d979baeeb0ab06ec8945. Chain 2 (Bitcoin): anchored in block 953962 (2026-06-16T15:03:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/26c7973a-a048-4183-809e-97dcd763db2d.json and https://artists.proofprofile.net/proofs/artist/26c7973a-a048-4183-809e-97dcd763db2d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).