Harry London
type: MusicGroup
popularity: 3
followers: 186
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2774c6eb3e7086797ca30dcb6c02dbd9349fdfecb0ff6d272d507814ec7a3fbd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953877
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953877
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/00f5acf0-548b-46c8-9648-899f156949ff.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/00f5acf0-548b-46c8-9648-899f156949ff.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/00f5acf0-548b-46c8-9648-899f156949ff
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T02:39:16Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2774c6eb3e7086797ca30dcb6c02dbd9349fdfecb0ff6d272d507814ec7a3fbd","name":"Harry London","registered_at":"2026-06-15T13:48:59Z","symbol":"NIM0727574","token_address":"0xe6bc310b2d2cc5331c2a05b3d46ac0114002e1f7","type":"artist","uuid":"00f5acf0-548b-46c8-9648-899f156949ff"}
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 0x2774c6eb3e7086797ca30dcb6c02dbd9349fdfecb0ff6d272d507814ec7a3fbd. Chain 2 (Bitcoin): anchored in block 953877 (2026-06-16T02:39:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/00f5acf0-548b-46c8-9648-899f156949ff.json and https://artists.proofprofile.net/proofs/artist/00f5acf0-548b-46c8-9648-899f156949ff.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T02:39:16Z
  text: {"copyright_id":"0x2774c6eb3e7086797ca30dcb6c02dbd9349fdfecb0ff6d272d507814ec7a3fbd","name":"Harry London","registered_at":"2026-06-15T13:48:59Z","symbol":"NIM0727574","token_address":"0xe6bc310b2d2cc5331c2a05b3d46ac0114002e1f7","type":"artist","uuid":"00f5acf0-548b-46c8-9648-899f156949ff"}
album: Riddle
  type: MusicAlbum
  date published: 2023-11-03
album: Chapter
  type: MusicAlbum
  date published: 2023-11-13
album: Vacant
  type: MusicAlbum
  date published: 2023-12-04
album: Losing Streak
  type: MusicAlbum
  date published: 2024-02-01
album: Anonymous
  type: MusicAlbum
  date published: 2024-03-05
album: Hypnotised
  type: MusicAlbum
  date published: 2024-04-01
album: Gold
  type: MusicAlbum
  date published: 2024-05-01
album: Demons I Know
  type: MusicAlbum
  date published: 2025-07-08