まつざき幸介
type: MusicGroup
genre: enka
genre: kayokyoku
popularity: 12
followers: 287
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf6184dee140f25eba56f142f4ce76f07902d6e6d6028b40cfdcca80fa3624684
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953768
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953768
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bfc6984e-8159-4721-8785-4228a16e32c6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bfc6984e-8159-4721-8785-4228a16e32c6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bfc6984e-8159-4721-8785-4228a16e32c6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T09:30:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf6184dee140f25eba56f142f4ce76f07902d6e6d6028b40cfdcca80fa3624684","name":"まつざき幸介","registered_at":"2026-06-15T00:38:06Z","symbol":"NIM0627088","token_address":"0xc6bbc69235c8f37af76aeede83e958cd00f9dc4f","type":"artist","uuid":"bfc6984e-8159-4721-8785-4228a16e32c6"}
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 0xf6184dee140f25eba56f142f4ce76f07902d6e6d6028b40cfdcca80fa3624684. Chain 2 (Bitcoin): anchored in block 953768 (2026-06-15T09:30:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bfc6984e-8159-4721-8785-4228a16e32c6.json and https://artists.proofprofile.net/proofs/artist/bfc6984e-8159-4721-8785-4228a16e32c6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T09:30:06Z
  text: {"copyright_id":"0xf6184dee140f25eba56f142f4ce76f07902d6e6d6028b40cfdcca80fa3624684","name":"まつざき幸介","registered_at":"2026-06-15T00:38:06Z","symbol":"NIM0627088","token_address":"0xc6bbc69235c8f37af76aeede83e958cd00f9dc4f","type":"artist","uuid":"bfc6984e-8159-4721-8785-4228a16e32c6"}
album: 悲愛／願い
  type: MusicAlbum
  date published: 2022-02-02
album: SIGNPOST6 ~まつざき幸介最新ベスト~
  type: MusicAlbum
  date published: 2022-05-11
album: おもいで通り雨／ふるさと川
  type: MusicAlbum
  date published: 2023-02-08
album: SIGNPOST 7 ～まつざき幸介最新ベスト～
  type: MusicAlbum
  date published: 2024-02-07
album: 月の秤／もう一度シェイク・ハンズ
  type: MusicAlbum
  date published: 2024-02-07
album: 砂時計／NAGASAKI物語
  type: MusicAlbum
  date published: 2025-02-26