杉瀬陽子
type: MusicGroup
genre: acoustic pop
genre: japanese indie
popularity: 4
followers: 804
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x28f86ff685f62049c339a90d23e26cb1e0eb4fade3c9c73b97172e79edd42e06
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a7f40fc3-757d-4276-8aaf-33dfd261ef81.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a7f40fc3-757d-4276-8aaf-33dfd261ef81.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a7f40fc3-757d-4276-8aaf-33dfd261ef81
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x28f86ff685f62049c339a90d23e26cb1e0eb4fade3c9c73b97172e79edd42e06","name":"杉瀬陽子","registered_at":"2026-06-20T08:18:53Z","symbol":"NIM1563807","token_address":"0x9c03fe31a794e1f9ca8430164ab5ee83cee450f6","type":"artist","uuid":"a7f40fc3-757d-4276-8aaf-33dfd261ef81"}
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 0x28f86ff685f62049c339a90d23e26cb1e0eb4fade3c9c73b97172e79edd42e06. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a7f40fc3-757d-4276-8aaf-33dfd261ef81.json and https://artists.proofprofile.net/proofs/artist/a7f40fc3-757d-4276-8aaf-33dfd261ef81.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0x28f86ff685f62049c339a90d23e26cb1e0eb4fade3c9c73b97172e79edd42e06","name":"杉瀬陽子","registered_at":"2026-06-20T08:18:53Z","symbol":"NIM1563807","token_address":"0x9c03fe31a794e1f9ca8430164ab5ee83cee450f6","type":"artist","uuid":"a7f40fc3-757d-4276-8aaf-33dfd261ef81"}
album: 音画
  type: MusicAlbum
  date published: 2011-07-06
album: 音画
  type: MusicAlbum
  date published: 2011-07-06
album: 音画
  type: MusicAlbum
  date published: 2011-07-06
album: 遠雷
  type: MusicAlbum
  date published: 2013-12-25
album: 遠雷
  type: MusicAlbum
  date published: 2013-12-25
album: 肖像
  type: MusicAlbum
  date published: 2015
album: 肖像
  type: MusicAlbum
  date published: 2015
album: 肖像
  type: MusicAlbum
  date published: 2015