FOUR SEVEN
type: MusicGroup
popularity: 3
followers: 3890
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x80525e8ef61ece8c4998a407e95f321f4a715f70aa7b86fb04a5b578fdee68a3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954013
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954013
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3521fdd6-5194-47e0-a854-23f1fbc6a075.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3521fdd6-5194-47e0-a854-23f1fbc6a075.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3521fdd6-5194-47e0-a854-23f1fbc6a075
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T22:27:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x80525e8ef61ece8c4998a407e95f321f4a715f70aa7b86fb04a5b578fdee68a3","name":"FOUR SEVEN","registered_at":"2026-06-16T08:03:58Z","symbol":"NIM0988973","token_address":"0xea55b25143b2373e756fd10bde911b6a31b9e496","type":"artist","uuid":"3521fdd6-5194-47e0-a854-23f1fbc6a075"}
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 0x80525e8ef61ece8c4998a407e95f321f4a715f70aa7b86fb04a5b578fdee68a3. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3521fdd6-5194-47e0-a854-23f1fbc6a075.json and https://artists.proofprofile.net/proofs/artist/3521fdd6-5194-47e0-a854-23f1fbc6a075.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:46:20Z
  text: {"copyright_id":"0x80525e8ef61ece8c4998a407e95f321f4a715f70aa7b86fb04a5b578fdee68a3","name":"FOUR SEVEN","registered_at":"2026-06-16T08:03:58Z","symbol":"NIM0988973","token_address":"0xea55b25143b2373e756fd10bde911b6a31b9e496","type":"artist","uuid":"3521fdd6-5194-47e0-a854-23f1fbc6a075"}
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