桜(CV.井澤詩織)
type: MusicGroup
genre: anime
popularity: 17
followers: 51
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x19afab27cd3e37f8a767a414209a2f5e2e8979970d551652a4e2ee5820b6a19f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953697
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953697
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/68e4708d-ede8-4ae0-94a3-a69f33a4c28a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/68e4708d-ede8-4ae0-94a3-a69f33a4c28a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/68e4708d-ede8-4ae0-94a3-a69f33a4c28a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T21:49:28Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x19afab27cd3e37f8a767a414209a2f5e2e8979970d551652a4e2ee5820b6a19f","name":"桜(CV.井澤詩織)","registered_at":"2026-06-14T15:24:32Z","symbol":"NIM0495047","token_address":"0xd26712b657a62236b1732061b97a979c5d6347f6","type":"artist","uuid":"68e4708d-ede8-4ae0-94a3-a69f33a4c28a"}
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 0x19afab27cd3e37f8a767a414209a2f5e2e8979970d551652a4e2ee5820b6a19f. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/68e4708d-ede8-4ae0-94a3-a69f33a4c28a.json and https://artists.proofprofile.net/proofs/artist/68e4708d-ede8-4ae0-94a3-a69f33a4c28a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T21:49:28Z
  text: {"copyright_id":"0x19afab27cd3e37f8a767a414209a2f5e2e8979970d551652a4e2ee5820b6a19f","name":"桜(CV.井澤詩織)","registered_at":"2026-06-14T15:24:32Z","symbol":"NIM0495047","token_address":"0xd26712b657a62236b1732061b97a979c5d6347f6","type":"artist","uuid":"68e4708d-ede8-4ae0-94a3-a69f33a4c28a"}