Mayumi Chiwaki
type: MusicGroup
genre: art pop
genre: kayokyoku
popularity: 7
followers: 890
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd8c38ecf50117810cda4d65b406c00323d40c23931a0329780cfacbb690587db
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954035
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954035
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3da18ff7-b36e-465e-b42a-d62a0375af20.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3da18ff7-b36e-465e-b42a-d62a0375af20.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3da18ff7-b36e-465e-b42a-d62a0375af20
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T02:39:28Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd8c38ecf50117810cda4d65b406c00323d40c23931a0329780cfacbb690587db","name":"Mayumi Chiwaki","registered_at":"2026-06-16T11:01:49Z","symbol":"NIM1031401","token_address":"0x9d80c24e9be678c36216926cdefe73309927e54d","type":"artist","uuid":"3da18ff7-b36e-465e-b42a-d62a0375af20"}
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 0xd8c38ecf50117810cda4d65b406c00323d40c23931a0329780cfacbb690587db. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3da18ff7-b36e-465e-b42a-d62a0375af20.json and https://artists.proofprofile.net/proofs/artist/3da18ff7-b36e-465e-b42a-d62a0375af20.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xd8c38ecf50117810cda4d65b406c00323d40c23931a0329780cfacbb690587db","name":"Mayumi Chiwaki","registered_at":"2026-06-16T11:01:49Z","symbol":"NIM1031401","token_address":"0x9d80c24e9be678c36216926cdefe73309927e54d","type":"artist","uuid":"3da18ff7-b36e-465e-b42a-d62a0375af20"}
album: グッド・モーニング・アイ・ラブ・ユー
  type: MusicAlbum
  date published: 1985-10-19
album: エンゼル～We Are Beautiful
  type: MusicAlbum
  date published: 1986-09-29
album: アタック・トリートメント
  type: MusicAlbum
  date published: 1987-02-04
album: デンジャラス・イズ・マイ・ミドル・ネーム
  type: MusicAlbum
  date published: 1987-10-26
album: ＧＬＯＲＩＡ
  type: MusicAlbum
  date published: 1988-09-23
album: EROTIC & PAIN
  type: MusicAlbum
  date published: 1992-01-29
album: ポッパーモスト
  type: MusicAlbum
  date published: 1999-07-16