Haupu
type: MusicGroup
popularity: 37
followers: 36
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1a6931cbc20313045539f3ff5a340741ee15a57f33bd3bdb8a7dedaa8ca38802
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/06d9838e-096a-446c-a7aa-63f1855e690c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/06d9838e-096a-446c-a7aa-63f1855e690c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/06d9838e-096a-446c-a7aa-63f1855e690c
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 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 0x1a6931cbc20313045539f3ff5a340741ee15a57f33bd3bdb8a7dedaa8ca38802. 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/06d9838e-096a-446c-a7aa-63f1855e690c.json and https://artists.proofprofile.net/proofs/artist/06d9838e-096a-446c-a7aa-63f1855e690c.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-12T19:24:56Z
album: Idyll
  type: MusicAlbum
  date published: 2024-04-07
album: Second chances
  type: MusicAlbum
  date published: 2024-04-14
album: Stepwise
  type: MusicAlbum
  date published: 2024-04-28
album: Centrepiece
  type: MusicAlbum
  date published: 2024-05-05
album: Dew Drops
  type: MusicAlbum
  date published: 2024-05-19
album: Piecemeal
  type: MusicAlbum
  date published: 2024-06-02
album: Envelop
  type: MusicAlbum
  date published: 2025-06-01
album: Perpetual
  type: MusicAlbum
  date published: 2025-06-17
album: Fortunate
  type: MusicAlbum
  date published: 2025-06-29
album: In Circles
  type: MusicAlbum
  date published: 2025-07-06
album: Pulses
  type: MusicAlbum
  date published: 2025-07-13
album: Spinning Top
  type: MusicAlbum
  date published: 2025-07-27
album: 12 Days of Christmas
  type: MusicAlbum
  date published: 2025-08-24
album: Birds
  type: MusicAlbum
  date published: 2025-09-21