千堂あきほ
type: MusicGroup
genre: kayokyoku
popularity: 2
followers: 73
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x328eafdf412911a6c581b33bb5767db9f78fae89a7d3cf3ecb5e69b98e0490a9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954631
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954631
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d0e7efba-62be-48c8-8805-8fbeee19d4a8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d0e7efba-62be-48c8-8805-8fbeee19d4a8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d0e7efba-62be-48c8-8805-8fbeee19d4a8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T02:46:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x328eafdf412911a6c581b33bb5767db9f78fae89a7d3cf3ecb5e69b98e0490a9","name":"千堂あきほ","registered_at":"2026-06-21T01:19:59Z","symbol":"NIM1774931","token_address":"0x61a0ae321c34da3cde413926c30a7c113b7aa046","type":"artist","uuid":"d0e7efba-62be-48c8-8805-8fbeee19d4a8"}
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 0x328eafdf412911a6c581b33bb5767db9f78fae89a7d3cf3ecb5e69b98e0490a9. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d0e7efba-62be-48c8-8805-8fbeee19d4a8.json and https://artists.proofprofile.net/proofs/artist/d0e7efba-62be-48c8-8805-8fbeee19d4a8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T02:46:24Z
  text: {"copyright_id":"0x328eafdf412911a6c581b33bb5767db9f78fae89a7d3cf3ecb5e69b98e0490a9","name":"千堂あきほ","registered_at":"2026-06-21T01:19:59Z","symbol":"NIM1774931","token_address":"0x61a0ae321c34da3cde413926c30a7c113b7aa046","type":"artist","uuid":"d0e7efba-62be-48c8-8805-8fbeee19d4a8"}
album: It's a Melody
  type: MusicAlbum
  date published: 1990-01-25
album: AQUIHO
  type: MusicAlbum
  date published: 1990-02-25
album: 硝子のECSTASY
  type: MusicAlbum
  date published: 1990-06-25
album: TOO BIG
  type: MusicAlbum
  date published: 1990-11-28
album: HOT BOX
  type: MusicAlbum
  date published: 1991-06-17
album: シースルー
  type: MusicAlbum
  date published: 1991-06-17
album: 千客万来
  type: MusicAlbum
  date published: 1992-04-25
album: LADY, WHO (吉例道行平成版)
  type: MusicAlbum
  date published: 1992-04-25
album: シークレットラヴ
  type: MusicAlbum
  date published: 1993-01-25
album: 5月の風のように
  type: MusicAlbum
  date published: 1993-03-25
album: 素敵になりたい
  type: MusicAlbum
  date published: 1993-10-10
album: ロマンティックス ～ベスト・セレクション～
  type: MusicAlbum
  date published: 1993-12-10
album: 切ない勇気
  type: MusicAlbum
  date published: 1994-08-10
album: REFINE - AQUIHO'S BEST
  type: MusicAlbum
  date published: 1994-09-25