Big Ben
type: MusicGroup
description: Big Ben is the nickname for the Great Bell of the Great Clock of Westminster, and, by extension, for the clock tower which stands at the north end of the Palace of Westminster in London, England.Fowle
popularity: 4
followers: 30
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa021f785c40b3f6704276651af28f8e020417d0569aaf966c7084c3c5ee35d34
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954131
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954131
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7d5dd06c-e2da-426b-ab31-9839f6013e1c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7d5dd06c-e2da-426b-ab31-9839f6013e1c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7d5dd06c-e2da-426b-ab31-9839f6013e1c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T19:19:19Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa021f785c40b3f6704276651af28f8e020417d0569aaf966c7084c3c5ee35d34","name":"Big Ben","registered_at":"2026-06-17T09:16:36Z","symbol":"NIM1349832","token_address":"0xdbcd3a6cda63ddd9e66927ceda427147e869eeef","type":"artist","uuid":"7d5dd06c-e2da-426b-ab31-9839f6013e1c"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa021f785c40b3f6704276651af28f8e020417d0569aaf966c7084c3c5ee35d34. Chain 2 (Bitcoin): anchored in block 954134 (2026-06-17T19:41:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7d5dd06c-e2da-426b-ab31-9839f6013e1c.json and https://artists.proofprofile.net/proofs/artist/7d5dd06c-e2da-426b-ab31-9839f6013e1c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T19:41:05Z
  text: {"copyright_id":"0xa021f785c40b3f6704276651af28f8e020417d0569aaf966c7084c3c5ee35d34","name":"Big Ben","registered_at":"2026-06-17T09:16:36Z","symbol":"NIM1349832","token_address":"0xdbcd3a6cda63ddd9e66927ceda427147e869eeef","type":"artist","uuid":"7d5dd06c-e2da-426b-ab31-9839f6013e1c"}