The Harp
type: MusicGroup
description: thumb|The Harp The Harp is a public house at 47 Chandos Place, Covent Garden, London, WC2N 4HS. It was The Welsh Harp until 1995, when it was taken over by an Irish woman Binnie Walsh, who subseq
popularity: 2
followers: 73
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4c84bc620d5b1e50dae69d367de2786bf80cf6a1baea4ec48a97335117e28b9d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ec736cab-dce4-4fb8-8f88-9c9567245c94.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ec736cab-dce4-4fb8-8f88-9c9567245c94.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ec736cab-dce4-4fb8-8f88-9c9567245c94
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4c84bc620d5b1e50dae69d367de2786bf80cf6a1baea4ec48a97335117e28b9d","name":"The Harp","registered_at":"2026-06-21T11:22:20Z","symbol":"NIM1909553","token_address":"0xba588db5ff263a63369890c48d8a21531093def6","type":"artist","uuid":"ec736cab-dce4-4fb8-8f88-9c9567245c94"}
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 0x4c84bc620d5b1e50dae69d367de2786bf80cf6a1baea4ec48a97335117e28b9d. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ec736cab-dce4-4fb8-8f88-9c9567245c94.json and https://artists.proofprofile.net/proofs/artist/ec736cab-dce4-4fb8-8f88-9c9567245c94.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
  text: {"copyright_id":"0x4c84bc620d5b1e50dae69d367de2786bf80cf6a1baea4ec48a97335117e28b9d","name":"The Harp","registered_at":"2026-06-21T11:22:20Z","symbol":"NIM1909553","token_address":"0xba588db5ff263a63369890c48d8a21531093def6","type":"artist","uuid":"ec736cab-dce4-4fb8-8f88-9c9567245c94"}
album: Blessings
  type: MusicAlbum
  date published: 2024-05-03
album: Feel Good
  type: MusicAlbum
  date published: 2024-08-08
album: Father
  type: MusicAlbum
  date published: 2024-11-10