Isurugi Futaba (CV: Teru Ikuta)
type: MusicGroup
popularity: 13
followers: 541
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x81eef2c91911d0a32f8b5526fbdbe4db619861321489e9690ec99c6e8b6838b7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953633
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953633
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3474da4e-d32d-4b0b-8452-cf0a3e9a6736.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3474da4e-d32d-4b0b-8452-cf0a3e9a6736.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3474da4e-d32d-4b0b-8452-cf0a3e9a6736
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T12:47:11Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x81eef2c91911d0a32f8b5526fbdbe4db619861321489e9690ec99c6e8b6838b7","name":"Isurugi Futaba (CV: Teru Ikuta)","registered_at":"2026-06-14T09:55:54Z","symbol":"NIM0416616","token_address":"0x350181ad2ac22a80dbb259fec7f80aaf415f4d26","type":"artist","uuid":"3474da4e-d32d-4b0b-8452-cf0a3e9a6736"}
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 0x81eef2c91911d0a32f8b5526fbdbe4db619861321489e9690ec99c6e8b6838b7. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3474da4e-d32d-4b0b-8452-cf0a3e9a6736.json and https://artists.proofprofile.net/proofs/artist/3474da4e-d32d-4b0b-8452-cf0a3e9a6736.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T15:20:52Z
  text: {"copyright_id":"0x81eef2c91911d0a32f8b5526fbdbe4db619861321489e9690ec99c6e8b6838b7","name":"Isurugi Futaba (CV: Teru Ikuta)","registered_at":"2026-06-14T09:55:54Z","symbol":"NIM0416616","token_address":"0x350181ad2ac22a80dbb259fec7f80aaf415f4d26","type":"artist","uuid":"3474da4e-d32d-4b0b-8452-cf0a3e9a6736"}