London
type: MusicGroup
genre: glam metal
description: London is the capital and largest city of England and the United Kingdom, with a population of million people in . Its wider metropolitan area is the largest in Western Europe, with a population of 1
popularity: 7
followers: 630
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb2170b36208963ac5ff828e6c35ccc30367b6750c5f19713581eb1d10393a7f0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cff95f58-ebb7-4414-90b0-07a7ad1f9207.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cff95f58-ebb7-4414-90b0-07a7ad1f9207.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cff95f58-ebb7-4414-90b0-07a7ad1f9207
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
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 0xb2170b36208963ac5ff828e6c35ccc30367b6750c5f19713581eb1d10393a7f0. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cff95f58-ebb7-4414-90b0-07a7ad1f9207.json and https://artists.proofprofile.net/proofs/artist/cff95f58-ebb7-4414-90b0-07a7ad1f9207.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
album: The Metal Years
  type: MusicAlbum
  date published: 2008-10-01
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  type: MusicAlbum
  date published: 2020-01-13
album: Closer / Under The Sea
  type: MusicAlbum
  date published: 2020-02-14
album: Cyaa Poison Mi
  type: MusicAlbum
  date published: 2020-05-15