Coven Japan
type: MusicGroup
genre: heavy metal
genre: speed metal
popularity: 2
followers: 527
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x18a25eaab94fded5d80454cca7af9e7b2090f6f5cdef9fd12e503728d0b6cf40
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953909
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953909
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/155d2d18-d294-4553-a1ef-a4326e08716e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/155d2d18-d294-4553-a1ef-a4326e08716e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/155d2d18-d294-4553-a1ef-a4326e08716e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:53:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x18a25eaab94fded5d80454cca7af9e7b2090f6f5cdef9fd12e503728d0b6cf40","name":"Coven Japan","registered_at":"2026-06-15T20:53:21Z","symbol":"NIM0828829","token_address":"0x4e7c1510eab61f5b8cf6fce71f82d632abc40bf7","type":"artist","uuid":"155d2d18-d294-4553-a1ef-a4326e08716e"}
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 0x18a25eaab94fded5d80454cca7af9e7b2090f6f5cdef9fd12e503728d0b6cf40. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/155d2d18-d294-4553-a1ef-a4326e08716e.json and https://artists.proofprofile.net/proofs/artist/155d2d18-d294-4553-a1ef-a4326e08716e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0x18a25eaab94fded5d80454cca7af9e7b2090f6f5cdef9fd12e503728d0b6cf40","name":"Coven Japan","registered_at":"2026-06-15T20:53:21Z","symbol":"NIM0828829","token_address":"0x4e7c1510eab61f5b8cf6fce71f82d632abc40bf7","type":"artist","uuid":"155d2d18-d294-4553-a1ef-a4326e08716e"}
album: The Advent
  type: MusicAlbum
  date published: 2017-09-29
album: The Advent
  type: MusicAlbum
  date published: 2017-09-29
album: 2018-2020
  type: MusicAlbum
  date published: 2020-05-21
album: What goes around comes around
  type: MusicAlbum
  date published: 2020-12-23
album: Earthlings
  type: MusicAlbum
  date published: 2023-11-24
album: Earthlings
  type: MusicAlbum
  date published: 2023-11-24