Sir Spyro
type: MusicGroup
genre: grime
description: Karl Joseph (born 29 June 1986), known professionally as Sir Spyro, is a British grime record producer, DJ, radio personality and label manager from East London. He was a Rinse FM resident for twelve
popularity: 3
followers: 131
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa6633f866b51c7f606d79b59c575afcf70f53b3852785c0246fd859bca1358a6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/48722c58-486c-445a-8ad9-9bfbf9c4936f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/48722c58-486c-445a-8ad9-9bfbf9c4936f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/48722c58-486c-445a-8ad9-9bfbf9c4936f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa6633f866b51c7f606d79b59c575afcf70f53b3852785c0246fd859bca1358a6","name":"Sir Spyro","registered_at":"2026-06-16T14:51:56Z","symbol":"NIM1086298","token_address":"0x610d6a50911dd9be378a549635d8d6ee3390b3d3","type":"artist","uuid":"48722c58-486c-445a-8ad9-9bfbf9c4936f"}
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 0xa6633f866b51c7f606d79b59c575afcf70f53b3852785c0246fd859bca1358a6. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/48722c58-486c-445a-8ad9-9bfbf9c4936f.json and https://artists.proofprofile.net/proofs/artist/48722c58-486c-445a-8ad9-9bfbf9c4936f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0xa6633f866b51c7f606d79b59c575afcf70f53b3852785c0246fd859bca1358a6","name":"Sir Spyro","registered_at":"2026-06-16T14:51:56Z","symbol":"NIM1086298","token_address":"0x610d6a50911dd9be378a549635d8d6ee3390b3d3","type":"artist","uuid":"48722c58-486c-445a-8ad9-9bfbf9c4936f"}