Mr. Black
type: MusicGroup
description: Mr. Black or Mr Black may refer to: Television Mr. Black (TV series), an Australian television comedy series Mr. Black, a character from the 2005 animated television series Johnny Test Mr. Black,
popularity: 5
followers: 16
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xebf28a172a63fb53566dc05550a1e40851b72a55034375f14c21a9517bcdef08
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8b3eeaf2-bc11-4a79-8776-22617ac92f5b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8b3eeaf2-bc11-4a79-8776-22617ac92f5b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8b3eeaf2-bc11-4a79-8776-22617ac92f5b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xebf28a172a63fb53566dc05550a1e40851b72a55034375f14c21a9517bcdef08","name":"Mr. Black","registered_at":"2026-06-17T14:35:52Z","symbol":"NIM1425902","token_address":"0x1e7cd394a8ac4258edc4865e626fb50d1995dce5","type":"artist","uuid":"8b3eeaf2-bc11-4a79-8776-22617ac92f5b"}
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 0xebf28a172a63fb53566dc05550a1e40851b72a55034375f14c21a9517bcdef08. 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/8b3eeaf2-bc11-4a79-8776-22617ac92f5b.json and https://artists.proofprofile.net/proofs/artist/8b3eeaf2-bc11-4a79-8776-22617ac92f5b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xebf28a172a63fb53566dc05550a1e40851b72a55034375f14c21a9517bcdef08","name":"Mr. Black","registered_at":"2026-06-17T14:35:52Z","symbol":"NIM1425902","token_address":"0x1e7cd394a8ac4258edc4865e626fb50d1995dce5","type":"artist","uuid":"8b3eeaf2-bc11-4a79-8776-22617ac92f5b"}