HANZO
type: MusicGroup
genre: enka
genre: kayokyoku
popularity: 5
followers: 392
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9c7f8bff94885c131f75170a0246fad46eedc50a4e9cb063917446c9a9a9409b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954014
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954014
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2e1be522-1e49-4e70-b186-4d0503f00c2a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2e1be522-1e49-4e70-b186-4d0503f00c2a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2e1be522-1e49-4e70-b186-4d0503f00c2a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T22:46:20Z
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 0x9c7f8bff94885c131f75170a0246fad46eedc50a4e9cb063917446c9a9a9409b. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2e1be522-1e49-4e70-b186-4d0503f00c2a.json and https://artists.proofprofile.net/proofs/artist/2e1be522-1e49-4e70-b186-4d0503f00c2a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:46:20Z
album: 駅から徒歩5分
  type: MusicAlbum
  date published: 2018-08-15
album: 人生の晩歌
  type: MusicAlbum
  date published: 2018-10-17
album: 人生の晩歌 Bタイプ
  type: MusicAlbum
  date published: 2019-12-11
album: Treasure of life～人生の宝物～
  type: MusicAlbum
  date published: 2020-09-16
album: Treasure of life～人生の宝物～Bタイプ
  type: MusicAlbum
  date published: 2021-09-15
album: Treasure of Songs
  type: MusicAlbum
  date published: 2022-01-19
album: 大海原 シングルバージョン
  type: MusicAlbum
  date published: 2022-07-20
album: 大海原 シングルバージョン Bタイプ
  type: MusicAlbum
  date published: 2022-12-14
album: 風の歌
  type: MusicAlbum
  date published: 2024-01-17
album: 寒い夜は
  type: MusicAlbum
  date published: 2024-11-20