Matthew Simms
type: MusicGroup
description: Matthew Simms is an English guitarist best known for his work with the band Wire. Simms formed the band It Hugs Back with schoolmates Paul Michael, Jack Theedom and Will Blackaby. Their debut album,
popularity: 3
followers: 9
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa99311c8c1898165fe8783f4f9df40fedc53592c633b2bef0af9f7603b853e37
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954647
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954647
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d6be1aa4-7990-4e3c-822f-d61e318002e6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d6be1aa4-7990-4e3c-822f-d61e318002e6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d6be1aa4-7990-4e3c-822f-d61e318002e6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T04:36:58Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa99311c8c1898165fe8783f4f9df40fedc53592c633b2bef0af9f7603b853e37","name":"Matthew Simms","registered_at":"2026-06-21T03:05:56Z","symbol":"NIM1800472","token_address":"0xbebecbe5380ee25807590fff48688bb94fbe3e76","type":"artist","uuid":"d6be1aa4-7990-4e3c-822f-d61e318002e6"}
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 0xa99311c8c1898165fe8783f4f9df40fedc53592c633b2bef0af9f7603b853e37. Chain 2 (Bitcoin): anchored in block 954647 (2026-06-21T04:36:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d6be1aa4-7990-4e3c-822f-d61e318002e6.json and https://artists.proofprofile.net/proofs/artist/d6be1aa4-7990-4e3c-822f-d61e318002e6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T04:36:58Z
  text: {"copyright_id":"0xa99311c8c1898165fe8783f4f9df40fedc53592c633b2bef0af9f7603b853e37","name":"Matthew Simms","registered_at":"2026-06-21T03:05:56Z","symbol":"NIM1800472","token_address":"0xbebecbe5380ee25807590fff48688bb94fbe3e76","type":"artist","uuid":"d6be1aa4-7990-4e3c-822f-d61e318002e6"}