Mickey Katz
type: MusicGroup
genre: comedy
description: Meyer Myron "Mickey" Katz (June 15, 1909 – April 30, 1985) was an American musician and comedian. He was the father of actor Joel Grey and paternal grandfather of actress Jennifer Grey. Early life Me
popularity: 2
followers: 721
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1059546c0211ecf8105c9b1528f8b4450c11f73239e0cf578d021f59b8cdf132
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5b25c812-db74-4d31-a66d-d99c76031697.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5b25c812-db74-4d31-a66d-d99c76031697.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5b25c812-db74-4d31-a66d-d99c76031697
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1059546c0211ecf8105c9b1528f8b4450c11f73239e0cf578d021f59b8cdf132","name":"Mickey Katz","registered_at":"2026-06-16T21:23:19Z","symbol":"NIM1179688","token_address":"0xf69607f8348ef56616940d082406ae0b8de6d1a8","type":"artist","uuid":"5b25c812-db74-4d31-a66d-d99c76031697"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1059546c0211ecf8105c9b1528f8b4450c11f73239e0cf578d021f59b8cdf132. 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/5b25c812-db74-4d31-a66d-d99c76031697.json and https://artists.proofprofile.net/proofs/artist/5b25c812-db74-4d31-a66d-d99c76031697.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x1059546c0211ecf8105c9b1528f8b4450c11f73239e0cf578d021f59b8cdf132","name":"Mickey Katz","registered_at":"2026-06-16T21:23:19Z","symbol":"NIM1179688","token_address":"0xf69607f8348ef56616940d082406ae0b8de6d1a8","type":"artist","uuid":"5b25c812-db74-4d31-a66d-d99c76031697"}
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