Union Jack
type: MusicGroup
genre: acid house
genre: ska
genre: ska punk
description: The Union Jack or Union Flag is the national flag of the United Kingdom. The flag is an overlay of the cross of Saint George (the patron saint of England), edged in white, superimposed on the red sal
popularity: 8
followers: 1106
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x918bd6cc5e5bf6642e1b9e0f11f9f35256a4304c39ad85de3daf1f925a34d606
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/89df3d51-abb7-4ea4-a534-a13e55ad9233.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/89df3d51-abb7-4ea4-a534-a13e55ad9233.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/89df3d51-abb7-4ea4-a534-a13e55ad9233
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x918bd6cc5e5bf6642e1b9e0f11f9f35256a4304c39ad85de3daf1f925a34d606","name":"Union Jack","registered_at":"2026-06-17T13:44:11Z","symbol":"NIM1413567","token_address":"0x0057fcf85de96bc03524d1c722e5ab5532978f0e","type":"artist","uuid":"89df3d51-abb7-4ea4-a534-a13e55ad9233"}
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 0x918bd6cc5e5bf6642e1b9e0f11f9f35256a4304c39ad85de3daf1f925a34d606. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/89df3d51-abb7-4ea4-a534-a13e55ad9233.json and https://artists.proofprofile.net/proofs/artist/89df3d51-abb7-4ea4-a534-a13e55ad9233.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x918bd6cc5e5bf6642e1b9e0f11f9f35256a4304c39ad85de3daf1f925a34d606","name":"Union Jack","registered_at":"2026-06-17T13:44:11Z","symbol":"NIM1413567","token_address":"0x0057fcf85de96bc03524d1c722e5ab5532978f0e","type":"artist","uuid":"89df3d51-abb7-4ea4-a534-a13e55ad9233"}
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