水树 Tassi
type: MusicGroup
genre: black metal
popularity: 2
followers: 704
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf79346682250163cc933d3f3d4934403f2f5077f49640319443641bff8c79edb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953864
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953864
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/04814875-722c-4c08-820b-a78ebbe203c7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/04814875-722c-4c08-820b-a78ebbe203c7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/04814875-722c-4c08-820b-a78ebbe203c7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T00:30:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf79346682250163cc933d3f3d4934403f2f5077f49640319443641bff8c79edb","name":"水树 Tassi","registered_at":"2026-06-15T15:10:05Z","symbol":"NIM0746929","token_address":"0xfc77d343bc301fb8219a6f9b68434837931e34e5","type":"artist","uuid":"04814875-722c-4c08-820b-a78ebbe203c7"}
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 0xf79346682250163cc933d3f3d4934403f2f5077f49640319443641bff8c79edb. Chain 2 (Bitcoin): anchored in block 953864 (2026-06-16T00:30:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/04814875-722c-4c08-820b-a78ebbe203c7.json and https://artists.proofprofile.net/proofs/artist/04814875-722c-4c08-820b-a78ebbe203c7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T00:30:31Z
  text: {"copyright_id":"0xf79346682250163cc933d3f3d4934403f2f5077f49640319443641bff8c79edb","name":"水树 Tassi","registered_at":"2026-06-15T15:10:05Z","symbol":"NIM0746929","token_address":"0xfc77d343bc301fb8219a6f9b68434837931e34e5","type":"artist","uuid":"04814875-722c-4c08-820b-a78ebbe203c7"}
album: 北之國
  type: MusicAlbum
  date published: 2020-05-28
album: 北之國 II
  type: MusicAlbum
  date published: 2020-06-15
album: 北之國 III
  type: MusicAlbum
  date published: 2020-10-30
album: 北之國 IV
  type: MusicAlbum
  date published: 2021-11-09
album: 北之國 V
  type: MusicAlbum
  date published: 2022-11-25