La Mer
type: MusicGroup
genre: black metal
popularity: 5
followers: 778
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x48200c5838d35a5473558fb0b0a69423dffbd07c9208ddc3f02f1303f939a6aa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954580
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954580
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b7478e7e-b093-47c8-9de3-b48770ff64ed.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b7478e7e-b093-47c8-9de3-b48770ff64ed.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b7478e7e-b093-47c8-9de3-b48770ff64ed
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T17:48:00Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x48200c5838d35a5473558fb0b0a69423dffbd07c9208ddc3f02f1303f939a6aa","name":"La Mer","registered_at":"2026-06-20T15:06:45Z","symbol":"NIM1640429","token_address":"0x068c28ae68baa95c4d34d8a29a33c18d22d59735","type":"artist","uuid":"b7478e7e-b093-47c8-9de3-b48770ff64ed"}
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 0x48200c5838d35a5473558fb0b0a69423dffbd07c9208ddc3f02f1303f939a6aa. Chain 2 (Bitcoin): anchored in block 954580 (2026-06-20T17:48:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b7478e7e-b093-47c8-9de3-b48770ff64ed.json and https://artists.proofprofile.net/proofs/artist/b7478e7e-b093-47c8-9de3-b48770ff64ed.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T17:48:00Z
  text: {"copyright_id":"0x48200c5838d35a5473558fb0b0a69423dffbd07c9208ddc3f02f1303f939a6aa","name":"La Mer","registered_at":"2026-06-20T15:06:45Z","symbol":"NIM1640429","token_address":"0x068c28ae68baa95c4d34d8a29a33c18d22d59735","type":"artist","uuid":"b7478e7e-b093-47c8-9de3-b48770ff64ed"}
album: Silence
  type: MusicAlbum
  date published: 2020-01-18
album: Kingdom of Hell
  type: MusicAlbum
  date published: 2020-06-01
album: Kingdom Come
  type: MusicAlbum
  date published: 2020-07-07
album: Persistence
  type: MusicAlbum
  date published: 2020-07-29
album: Fear Nothing
  type: MusicAlbum
  date published: 2020-10-16
album: Everything Is Falling Apart
  type: MusicAlbum
  date published: 2021-09-05
album: Funeral
  type: MusicAlbum
  date published: 2022-01-21
album: Death Verses
  type: MusicAlbum
  date published: 2022-03-04
album: Gallow Hill
  type: MusicAlbum
  date published: 2023-05-18
album: Strach / Death Dogs
  type: MusicAlbum
  date published: 2023-09-29
album: Tetrahedra
  type: MusicAlbum
  date published: 2023-10-27