Hollow Head
type: MusicGroup
popularity: 3
followers: 753
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x26f4eda89393436f09fdbc29b81d679e9c4c88f9b4c1e4409720f7589062dcf9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954593
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954593
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/be6a5750-deba-462b-9a85-334b07318ec7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/be6a5750-deba-462b-9a85-334b07318ec7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/be6a5750-deba-462b-9a85-334b07318ec7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:46:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x26f4eda89393436f09fdbc29b81d679e9c4c88f9b4c1e4409720f7589062dcf9","name":"Hollow Head","registered_at":"2026-06-20T18:13:17Z","symbol":"NIM1675637","token_address":"0x85670f7264ea707bd435dbf71ce047e3585b4558","type":"artist","uuid":"be6a5750-deba-462b-9a85-334b07318ec7"}
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 0x26f4eda89393436f09fdbc29b81d679e9c4c88f9b4c1e4409720f7589062dcf9. Chain 2 (Bitcoin): anchored in block 954593 (2026-06-20T19:46:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/be6a5750-deba-462b-9a85-334b07318ec7.json and https://artists.proofprofile.net/proofs/artist/be6a5750-deba-462b-9a85-334b07318ec7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:46:01Z
  text: {"copyright_id":"0x26f4eda89393436f09fdbc29b81d679e9c4c88f9b4c1e4409720f7589062dcf9","name":"Hollow Head","registered_at":"2026-06-20T18:13:17Z","symbol":"NIM1675637","token_address":"0x85670f7264ea707bd435dbf71ce047e3585b4558","type":"artist","uuid":"be6a5750-deba-462b-9a85-334b07318ec7"}
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