I Know I Know
type: MusicGroup
popularity: 9
followers: 845
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x36f93f14474c03b3d8623bf075c5b45a12f344e06110249e3aa31ba2f2f31f03
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dd14d36b-03e4-4089-8fad-db4a4687582b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dd14d36b-03e4-4089-8fad-db4a4687582b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dd14d36b-03e4-4089-8fad-db4a4687582b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x36f93f14474c03b3d8623bf075c5b45a12f344e06110249e3aa31ba2f2f31f03","name":"I Know I Know","registered_at":"2026-06-21T05:36:34Z","symbol":"NIM1835946","token_address":"0xdc733508a6523c559b5455bcf831d8f8c957f73e","type":"artist","uuid":"dd14d36b-03e4-4089-8fad-db4a4687582b"}
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 0x36f93f14474c03b3d8623bf075c5b45a12f344e06110249e3aa31ba2f2f31f03. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dd14d36b-03e4-4089-8fad-db4a4687582b.json and https://artists.proofprofile.net/proofs/artist/dd14d36b-03e4-4089-8fad-db4a4687582b.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x36f93f14474c03b3d8623bf075c5b45a12f344e06110249e3aa31ba2f2f31f03","name":"I Know I Know","registered_at":"2026-06-21T05:36:34Z","symbol":"NIM1835946","token_address":"0xdc733508a6523c559b5455bcf831d8f8c957f73e","type":"artist","uuid":"dd14d36b-03e4-4089-8fad-db4a4687582b"}
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