Tiger Black
type: MusicGroup
description: Ernest Harold 'Tiger' Black (1918 – 30 August 1983) was an Australian rugby league footballer who played in the 1930s and 1940s. He later became a rugby league broadcaster and commentator. Playing c
popularity: 3
followers: 244
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8de9a9deb7cc6738e6ed31b38580090e52f367f604be0f473c2e1a8e42396be7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954693
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954693
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e539ab17-273f-48bd-aa01-62874eea3fa3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e539ab17-273f-48bd-aa01-62874eea3fa3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e539ab17-273f-48bd-aa01-62874eea3fa3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T11:50:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8de9a9deb7cc6738e6ed31b38580090e52f367f604be0f473c2e1a8e42396be7","name":"Tiger Black","registered_at":"2026-06-21T07:59:51Z","symbol":"NIM1869250","token_address":"0x2927d152bb8eb0d128dd608e3a08426db45b5d6e","type":"artist","uuid":"e539ab17-273f-48bd-aa01-62874eea3fa3"}
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 0x8de9a9deb7cc6738e6ed31b38580090e52f367f604be0f473c2e1a8e42396be7. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e539ab17-273f-48bd-aa01-62874eea3fa3.json and https://artists.proofprofile.net/proofs/artist/e539ab17-273f-48bd-aa01-62874eea3fa3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T11:50:32Z
  text: {"copyright_id":"0x8de9a9deb7cc6738e6ed31b38580090e52f367f604be0f473c2e1a8e42396be7","name":"Tiger Black","registered_at":"2026-06-21T07:59:51Z","symbol":"NIM1869250","token_address":"0x2927d152bb8eb0d128dd608e3a08426db45b5d6e","type":"artist","uuid":"e539ab17-273f-48bd-aa01-62874eea3fa3"}
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