Ohanko
type: MusicGroup
popularity: 3
followers: 278
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd5088bbc03209bd0420b0d7c8b22d8c22eaf71765e7f62ab327f96e0781af15e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953907
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953907
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/17460b47-e326-4758-8894-cda44a6d12f5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/17460b47-e326-4758-8894-cda44a6d12f5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/17460b47-e326-4758-8894-cda44a6d12f5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:39:24Z
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 0xd5088bbc03209bd0420b0d7c8b22d8c22eaf71765e7f62ab327f96e0781af15e. Chain 2 (Bitcoin): anchored in block 953907 (2026-06-16T07:39:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/17460b47-e326-4758-8894-cda44a6d12f5.json and https://artists.proofprofile.net/proofs/artist/17460b47-e326-4758-8894-cda44a6d12f5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:39:24Z
album: Tranquil
  type: MusicAlbum
  date published: 2020-03-24
album: Tranquil
  type: MusicAlbum
  date published: 2020-03-24
album: Membranes
  type: MusicAlbum
  date published: 2020-04-05
album: Canasta Asesina
  type: MusicAlbum
  date published: 2020-06-08
album: Delicatessen
  type: MusicAlbum
  date published: 2020-06-17
album: No Bad Like We
  type: MusicAlbum
  date published: 2020-08-02
album: Game Boy Advanced
  type: MusicAlbum
  date published: 2020-08-06
album: Fang
  type: MusicAlbum
  date published: 2021-03-14
album: Cortisol
  type: MusicAlbum
  date published: 2023-10-16
album: S2C
  type: MusicAlbum
  date published: 2024-06-06