José de Sousa Saramago (; 16 November 1922 – 18 June 2010) was a Portuguese writer. He was the recipient of the 1998 Nobel Prize in Literature for his "parables sustained by imagination, compassio
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 0xe346be38c831564493e539dff6f58732c7c645465a542cb87ca5fbb9ba1a1641. Chain 2 (Bitcoin): anchored in block 953879 (2026-06-16T02:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/08ee499f-7e27-46cb-95a2-1001ed3d5720.json and https://artists.proofprofile.net/proofs/artist/08ee499f-7e27-46cb-95a2-1001ed3d5720.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).