hppn
type: MusicGroup
popularity: 21
followers: 156
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xadadd9e0fd750736b36d07b51b07753f3262b13a2c72508c35803d14f6d351ab
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/59ab0b67-887a-4656-9510-340325a5e7d8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/59ab0b67-887a-4656-9510-340325a5e7d8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/59ab0b67-887a-4656-9510-340325a5e7d8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadadd9e0fd750736b36d07b51b07753f3262b13a2c72508c35803d14f6d351ab. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/59ab0b67-887a-4656-9510-340325a5e7d8.json and https://artists.proofprofile.net/proofs/artist/59ab0b67-887a-4656-9510-340325a5e7d8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
album: Closely
  type: MusicAlbum
  date published: 2023-02-10
album: it's a long time
  type: MusicAlbum
  date published: 2023-03-10
album: Viraha
  type: MusicAlbum
  date published: 2023-03-31
album: From you
  type: MusicAlbum
  date published: 2023-05-19
album: Kyoto
  type: MusicAlbum
  date published: 2023-06-16
album: Berries
  type: MusicAlbum
  date published: 2023-07-13
album: Cotton Cloud
  type: MusicAlbum
  date published: 2023-08-24
album: Imagery
  type: MusicAlbum
  date published: 2023-09-22
album: Mizu
  type: MusicAlbum
  date published: 2023-10-20
album: Bloom
  type: MusicAlbum
  date published: 2024-05-31
album: so far
  type: MusicAlbum
  date published: 2024-09-06
album: Haze
  type: MusicAlbum
  date published: 2024-12-06
album: Echoes
  type: MusicAlbum
  date published: 2024-12-20
album: Fading Lights
  type: MusicAlbum
  date published: 2025-01-03
album: Lapse
  type: MusicAlbum
  date published: 2025-01-17
album: Gradation
  type: MusicAlbum
  date published: 2025-01-31