澤田真里愛
type: MusicGroup
popularity: 5
followers: 1180
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe70057d50f08b22a3e9e1fb98446512023cd85f143faf5b504901f28d75a11c5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953968
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953968
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/28055ff7-90cd-4bf7-bfd3-6db5e903cf4c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/28055ff7-90cd-4bf7-bfd3-6db5e903cf4c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/28055ff7-90cd-4bf7-bfd3-6db5e903cf4c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:01:49Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe70057d50f08b22a3e9e1fb98446512023cd85f143faf5b504901f28d75a11c5","name":"澤田真里愛","registered_at":"2026-06-16T03:32:22Z","symbol":"NIM0924083","token_address":"0x60590c1965520ab00dfa1d78a78117363e41282d","type":"artist","uuid":"28055ff7-90cd-4bf7-bfd3-6db5e903cf4c"}
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 0xe70057d50f08b22a3e9e1fb98446512023cd85f143faf5b504901f28d75a11c5. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/28055ff7-90cd-4bf7-bfd3-6db5e903cf4c.json and https://artists.proofprofile.net/proofs/artist/28055ff7-90cd-4bf7-bfd3-6db5e903cf4c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:46:20Z
  text: {"copyright_id":"0xe70057d50f08b22a3e9e1fb98446512023cd85f143faf5b504901f28d75a11c5","name":"澤田真里愛","registered_at":"2026-06-16T03:32:22Z","symbol":"NIM0924083","token_address":"0x60590c1965520ab00dfa1d78a78117363e41282d","type":"artist","uuid":"28055ff7-90cd-4bf7-bfd3-6db5e903cf4c"}
album: TVアニメ『ミュークルドリーミー』主題歌シングル ミライくるくるユメくるる！【通常盤】
  type: MusicAlbum
  date published: 2017