Hidden Lines
type: MusicGroup
genre: cold wave
genre: darkwave
genre: ebm
genre: post-punk
genre: synthpop
popularity: 2
followers: 300
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x86cf513e4f736a350021df098b41017c962be311330a8f377bcd6f9e4b77052d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/58e0014f-2f66-4e9f-9b03-7e6046d28aaa.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/58e0014f-2f66-4e9f-9b03-7e6046d28aaa.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/58e0014f-2f66-4e9f-9b03-7e6046d28aaa
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x86cf513e4f736a350021df098b41017c962be311330a8f377bcd6f9e4b77052d","name":"Hidden Lines","registered_at":"2026-06-16T20:38:06Z","symbol":"NIM1168903","token_address":"0x9637c84dc4d7a699f793e10acb7d93bf5d0d08a6","type":"artist","uuid":"58e0014f-2f66-4e9f-9b03-7e6046d28aaa"}
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 0x86cf513e4f736a350021df098b41017c962be311330a8f377bcd6f9e4b77052d. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/58e0014f-2f66-4e9f-9b03-7e6046d28aaa.json and https://artists.proofprofile.net/proofs/artist/58e0014f-2f66-4e9f-9b03-7e6046d28aaa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x86cf513e4f736a350021df098b41017c962be311330a8f377bcd6f9e4b77052d","name":"Hidden Lines","registered_at":"2026-06-16T20:38:06Z","symbol":"NIM1168903","token_address":"0x9637c84dc4d7a699f793e10acb7d93bf5d0d08a6","type":"artist","uuid":"58e0014f-2f66-4e9f-9b03-7e6046d28aaa"}
album: HEAT
  type: MusicAlbum
  date published: 2022-11-18
album: Uusi Aalto
  type: MusicAlbum
  date published: 2023-06-02