Hjarta
type: MusicGroup
popularity: 5
followers: 85
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1cb15eacdc8d59d369f3406979654d95575ebf93eabe1955122127b4943d785c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c19656e8-bab1-495b-9b03-7305937070bd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c19656e8-bab1-495b-9b03-7305937070bd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c19656e8-bab1-495b-9b03-7305937070bd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
additional property: OTSCanonicalRecord
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 0x1cb15eacdc8d59d369f3406979654d95575ebf93eabe1955122127b4943d785c. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c19656e8-bab1-495b-9b03-7305937070bd.json and https://artists.proofprofile.net/proofs/artist/c19656e8-bab1-495b-9b03-7305937070bd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
album: Le ambulanze
  type: MusicAlbum
  date published: 2018-11-09
album: Let a Boy Cry
  type: MusicAlbum
  date published: 2018-11-16
album: Ipertesto
  type: MusicAlbum
  date published: 2019-02-28
album: Dentro
  type: MusicAlbum
  date published: 2020-05-01
album: AIDS
  type: MusicAlbum
  date published: 2021-12-01
album: A1
  type: MusicAlbum
  date published: 2022-08-01
album: Campana
  type: MusicAlbum
  date published: 2023-04-14