さゆに!
type: MusicGroup
genre: modern-j-rock
popularity: 9
followers: 1640
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd82cba7f441e53610b8b0beb29e78d4e937c1975d582825e976bb9e42fba631c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953903
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953903
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/136a47d9-885b-4fcf-b4ec-36562c080936.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/136a47d9-885b-4fcf-b4ec-36562c080936.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/136a47d9-885b-4fcf-b4ec-36562c080936
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:05:05Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd82cba7f441e53610b8b0beb29e78d4e937c1975d582825e976bb9e42fba631c","name":"さゆに!","registered_at":"2026-06-15T20:31:38Z","symbol":"NIM0823654","token_address":"0xb5dd226a53d0d3c3031039d94988d93f6e4f3e21","type":"artist","uuid":"136a47d9-885b-4fcf-b4ec-36562c080936"}
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 0xd82cba7f441e53610b8b0beb29e78d4e937c1975d582825e976bb9e42fba631c. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/136a47d9-885b-4fcf-b4ec-36562c080936.json and https://artists.proofprofile.net/proofs/artist/136a47d9-885b-4fcf-b4ec-36562c080936.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
  text: {"copyright_id":"0xd82cba7f441e53610b8b0beb29e78d4e937c1975d582825e976bb9e42fba631c","name":"さゆに!","registered_at":"2026-06-15T20:31:38Z","symbol":"NIM0823654","token_address":"0xb5dd226a53d0d3c3031039d94988d93f6e4f3e21","type":"artist","uuid":"136a47d9-885b-4fcf-b4ec-36562c080936"}
album: 東京街灯
  type: MusicAlbum
  date published: 2023-05-24
album: 合言葉
  type: MusicAlbum
  date published: 2023-02-22