Francis
type: MusicGroup
genre: city pop
genre: shibuya-kei
popularity: 10
followers: 321
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7851d56796aa1dab03d732abd368a86b8866d230c2a49cc3df1394152d4202d4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954659
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954659
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dcfe904d-1c30-4795-92a7-1089835bc2fa.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dcfe904d-1c30-4795-92a7-1089835bc2fa.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dcfe904d-1c30-4795-92a7-1089835bc2fa
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T06:14:42Z
additional property: OTSCanonicalRecord
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 0x7851d56796aa1dab03d732abd368a86b8866d230c2a49cc3df1394152d4202d4. Chain 2 (Bitcoin): anchored in block 954659 (2026-06-21T06:14:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dcfe904d-1c30-4795-92a7-1089835bc2fa.json and https://artists.proofprofile.net/proofs/artist/dcfe904d-1c30-4795-92a7-1089835bc2fa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T06:14:42Z
album: Burning Bear!
  type: MusicAlbum
  date published: 2015
album: Burning Bear!
  type: MusicAlbum
  date published: 2015-11-25
album: Bolero
  type: MusicAlbum
  date published: 2021-09-27
album: Bolero
  type: MusicAlbum
  date published: 2021-09-30
album: 裁かるゝエミリ
  type: MusicAlbum
  date published: 2023-05-24