Big Josh
type: MusicGroup
description: REDIRECT Matt Borne
popularity: 12
followers: 6
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf38b0644ce7e335b6db87c2a5829955a338bb9a5168cfeb4f4f9a8dba2171f35
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953724
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953724
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8e07a566-ac5a-4dda-b19b-826f90c56af1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8e07a566-ac5a-4dda-b19b-826f90c56af1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8e07a566-ac5a-4dda-b19b-826f90c56af1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T01:43:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf38b0644ce7e335b6db87c2a5829955a338bb9a5168cfeb4f4f9a8dba2171f35","name":"Big Josh","registered_at":"2026-06-14T19:27:11Z","symbol":"NIM0552895","token_address":"0x68c3c109751f3698e09bf632af7e94b409d4ae61","type":"artist","uuid":"8e07a566-ac5a-4dda-b19b-826f90c56af1"}
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 0xf38b0644ce7e335b6db87c2a5829955a338bb9a5168cfeb4f4f9a8dba2171f35. Chain 2 (Bitcoin): anchored in block 953724 (2026-06-15T01:43:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8e07a566-ac5a-4dda-b19b-826f90c56af1.json and https://artists.proofprofile.net/proofs/artist/8e07a566-ac5a-4dda-b19b-826f90c56af1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T01:43:13Z
  text: {"copyright_id":"0xf38b0644ce7e335b6db87c2a5829955a338bb9a5168cfeb4f4f9a8dba2171f35","name":"Big Josh","registered_at":"2026-06-14T19:27:11Z","symbol":"NIM0552895","token_address":"0x68c3c109751f3698e09bf632af7e94b409d4ae61","type":"artist","uuid":"8e07a566-ac5a-4dda-b19b-826f90c56af1"}