初代 鈴木正夫
type: MusicGroup
genre: enka
genre: kayokyoku
popularity: 2
followers: 176
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x282b50fc401252f663b2427fed519c101c1105a027af1e711a7055622620225c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ba1f461a-5432-46b4-9099-f2d5c041dbe7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ba1f461a-5432-46b4-9099-f2d5c041dbe7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ba1f461a-5432-46b4-9099-f2d5c041dbe7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x282b50fc401252f663b2427fed519c101c1105a027af1e711a7055622620225c","name":"初代 鈴木正夫","registered_at":"2026-06-20T16:34:33Z","symbol":"NIM1656270","token_address":"0x123a1bf173c5e19151f98f59f581f288de6bc3e2","type":"artist","uuid":"ba1f461a-5432-46b4-9099-f2d5c041dbe7"}
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 0x282b50fc401252f663b2427fed519c101c1105a027af1e711a7055622620225c. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ba1f461a-5432-46b4-9099-f2d5c041dbe7.json and https://artists.proofprofile.net/proofs/artist/ba1f461a-5432-46b4-9099-f2d5c041dbe7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x282b50fc401252f663b2427fed519c101c1105a027af1e711a7055622620225c","name":"初代 鈴木正夫","registered_at":"2026-06-20T16:34:33Z","symbol":"NIM1656270","token_address":"0x123a1bf173c5e19151f98f59f581f288de6bc3e2","type":"artist","uuid":"ba1f461a-5432-46b4-9099-f2d5c041dbe7"}
album: 日本の流行歌スターたち(20) 初代・鈴木正夫 豊年祭り（相馬盆唄）～戦場さくら節
  type: MusicAlbum
  date published: 2019-04-24