Error 404
type: MusicGroup
popularity: 2
followers: 373
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa4d2240c4a52054bebf8e5d47959e6f87745a1bef114cdf18cbdb09b32f93ad6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954615
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954615
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c51557e7-3145-4687-ae79-b18a6b665327.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c51557e7-3145-4687-ae79-b18a6b665327.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c51557e7-3145-4687-ae79-b18a6b665327
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T22:44:50Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa4d2240c4a52054bebf8e5d47959e6f87745a1bef114cdf18cbdb09b32f93ad6","name":"Error 404","registered_at":"2026-06-20T21:05:59Z","symbol":"NIM1711463","token_address":"0xad659c19ae66eb8f2cdf163b4231b9511c0a3b2b","type":"artist","uuid":"c51557e7-3145-4687-ae79-b18a6b665327"}
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 0xa4d2240c4a52054bebf8e5d47959e6f87745a1bef114cdf18cbdb09b32f93ad6. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c51557e7-3145-4687-ae79-b18a6b665327.json and https://artists.proofprofile.net/proofs/artist/c51557e7-3145-4687-ae79-b18a6b665327.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T22:44:50Z
  text: {"copyright_id":"0xa4d2240c4a52054bebf8e5d47959e6f87745a1bef114cdf18cbdb09b32f93ad6","name":"Error 404","registered_at":"2026-06-20T21:05:59Z","symbol":"NIM1711463","token_address":"0xad659c19ae66eb8f2cdf163b4231b9511c0a3b2b","type":"artist","uuid":"c51557e7-3145-4687-ae79-b18a6b665327"}
album: Veleno
  type: MusicAlbum
  date published: 2020-10-21
album: Come piace a me
  type: MusicAlbum
  date published: 2021-07-22
album: Future Still Not Found
  type: MusicAlbum
  date published: 2022-06-28
album: Conteremo i Giorni
  type: MusicAlbum
  date published: 2023-04-21
album: Indispensabile
  type: MusicAlbum
  date published: 2023-11-23
album: Demoni
  type: MusicAlbum
  date published: 2024-02-23
album: Inferno
  type: MusicAlbum
  date published: 2024-05-17
album: A riveder le stelle
  type: MusicAlbum
  date published: 2024-10-10
album: Inferno
  type: MusicAlbum
  date published: 2025-05-01