Anna Mochizuki (CV: Shiina Natsukawa)
type: MusicGroup
popularity: 12
followers: 189
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb48f5777da7b97f327a0acb7a395fc60b0b256f412909ac4e950b5aeb12607a8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953678
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953678
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/639ba6b5-4e43-4515-9e0e-4564f0f431d1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/639ba6b5-4e43-4515-9e0e-4564f0f431d1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/639ba6b5-4e43-4515-9e0e-4564f0f431d1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T19:23:11Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb48f5777da7b97f327a0acb7a395fc60b0b256f412909ac4e950b5aeb12607a8","name":"Anna Mochizuki (CV: Shiina Natsukawa)","registered_at":"2026-06-14T14:57:22Z","symbol":"NIM0488555","token_address":"0x56089a051424ac6f6ba37c158c2e2c0168796c20","type":"artist","uuid":"639ba6b5-4e43-4515-9e0e-4564f0f431d1"}
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 0xb48f5777da7b97f327a0acb7a395fc60b0b256f412909ac4e950b5aeb12607a8. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/639ba6b5-4e43-4515-9e0e-4564f0f431d1.json and https://artists.proofprofile.net/proofs/artist/639ba6b5-4e43-4515-9e0e-4564f0f431d1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T22:00:24Z
  text: {"copyright_id":"0xb48f5777da7b97f327a0acb7a395fc60b0b256f412909ac4e950b5aeb12607a8","name":"Anna Mochizuki (CV: Shiina Natsukawa)","registered_at":"2026-06-14T14:57:22Z","symbol":"NIM0488555","token_address":"0x56089a051424ac6f6ba37c158c2e2c0168796c20","type":"artist","uuid":"639ba6b5-4e43-4515-9e0e-4564f0f431d1"}