The Great Kat
type: MusicGroup
genre: melodic metal
genre: neoclassical
genre: speed metal
genre: thrash metal
description: Katherine Thomas (born June 6, 1966), best known by her stage name The Great Kat, is an American guitarist and singer best known for her thrash metal interpretations of well-known pieces of classical
popularity: 16
followers: 4796
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSVerifyInstructions
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  value: 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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc33b7e26345dc0e103538e953b5ace2f8360cada663f1a345b32da2f9e3df3e. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8159381c-eb1f-4306-801b-8b4f3786f93b.json and https://artists.proofprofile.net/proofs/artist/8159381c-eb1f-4306-801b-8b4f3786f93b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:47:56Z
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