Helena Neves was an active Portuguese communist and feminist and an opponent of the Estado Novo regime in Portugal, being imprisoned on three occasions. She became a successful journalist and was a de
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 0x62d72043ff3ad85df213067f74f06333f991802e81eb905686c394c3961f41ff. Chain 2 (Bitcoin): anchored in block 954647 (2026-06-21T04:36:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d60b040a-7c5a-4229-9c81-06ead07eae88.json and https://artists.proofprofile.net/proofs/artist/d60b040a-7c5a-4229-9c81-06ead07eae88.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).