Hades (; , , later ), in the ancient Greek religion and mythology, is the god of the dead and riches and the King of the underworld, with which his name became synonymous.. Hades was the eldest son of
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 0xa0697b5d93e9bb0b4222c38cce9702bb16da70cf16dd5f4f10aaa24301aa8d23. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8d00488b-a010-49f1-a797-ca9eb221b508.json and https://artists.proofprofile.net/proofs/artist/8d00488b-a010-49f1-a797-ca9eb221b508.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).