Jack Black
type: MusicGroup
description: Thomas Jacob "Jack" Black (born August 28, 1969) is an American actor, comedian, and musician. He has played leading roles in family and comedy films, in addition to his voice work in animated feature
popularity: 17
followers: 53
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x84033f2346285258822b4e68c04762335560e576d3251260d1216c6aa511e0e5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953741
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953741
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9a15726f-6204-459e-9a35-30a2ff4437dc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9a15726f-6204-459e-9a35-30a2ff4437dc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9a15726f-6204-459e-9a35-30a2ff4437dc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T04:44:49Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x84033f2346285258822b4e68c04762335560e576d3251260d1216c6aa511e0e5","name":"Jack Black","registered_at":"2026-06-14T20:41:55Z","symbol":"NIM0570701","token_address":"0x2359c4ba82d6142956a8d521a7a980c4acbd9883","type":"artist","uuid":"9a15726f-6204-459e-9a35-30a2ff4437dc"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84033f2346285258822b4e68c04762335560e576d3251260d1216c6aa511e0e5. 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/9a15726f-6204-459e-9a35-30a2ff4437dc.json and https://artists.proofprofile.net/proofs/artist/9a15726f-6204-459e-9a35-30a2ff4437dc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:47:56Z
  text: {"copyright_id":"0x84033f2346285258822b4e68c04762335560e576d3251260d1216c6aa511e0e5","name":"Jack Black","registered_at":"2026-06-14T20:41:55Z","symbol":"NIM0570701","token_address":"0x2359c4ba82d6142956a8d521a7a980c4acbd9883","type":"artist","uuid":"9a15726f-6204-459e-9a35-30a2ff4437dc"}
album: Overlove
  type: MusicAlbum
  date published: 2022-11-09