Eguía is a Spanish surname. Notable people with the surname include: Enrique Eguía Seguí (born 1962), Argentine prelate of the Roman Catholic Church Esteban Eguía (1890–1934), Spanish footballer E
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 0xb309b0cfb0f4a41f230d6cd2ac4218eaf80ed597395bf5c8a0f9297f16c22784. 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/64ee859d-dcbf-4100-a105-cbeba4671273.json and https://artists.proofprofile.net/proofs/artist/64ee859d-dcbf-4100-a105-cbeba4671273.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).