Joshua Hart
type: MusicGroup
popularity: 8
followers: 124
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xef5f15c83163f7a54c1df377da14b80c4ca693a2db4632f190b11c0620eee609
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954569
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954569
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b2cd0854-9a38-4384-8904-a071f2a42d39.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b2cd0854-9a38-4384-8904-a071f2a42d39.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b2cd0854-9a38-4384-8904-a071f2a42d39
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T14:36:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xef5f15c83163f7a54c1df377da14b80c4ca693a2db4632f190b11c0620eee609","name":"Joshua Hart","registered_at":"2026-06-20T12:47:24Z","symbol":"NIM1618471","token_address":"0x0d33600e35e12701fd92bdbd17a78b6b4687f8e0","type":"artist","uuid":"b2cd0854-9a38-4384-8904-a071f2a42d39"}
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 0xef5f15c83163f7a54c1df377da14b80c4ca693a2db4632f190b11c0620eee609. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b2cd0854-9a38-4384-8904-a071f2a42d39.json and https://artists.proofprofile.net/proofs/artist/b2cd0854-9a38-4384-8904-a071f2a42d39.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T14:36:29Z
  text: {"copyright_id":"0xef5f15c83163f7a54c1df377da14b80c4ca693a2db4632f190b11c0620eee609","name":"Joshua Hart","registered_at":"2026-06-20T12:47:24Z","symbol":"NIM1618471","token_address":"0x0d33600e35e12701fd92bdbd17a78b6b4687f8e0","type":"artist","uuid":"b2cd0854-9a38-4384-8904-a071f2a42d39"}
album: Chasing The Night
  type: MusicAlbum
  date published: 2024-10-31