浦中こういち
type: MusicGroup
genre: lullaby
popularity: 9
followers: 71
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd816b20140668a0078c8c7aa460b47dbbeb0c0d5ff2ea4396c97294deac1a398
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953988
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953988
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2e890006-bffb-4ac0-9eeb-7c6ef8aeef5f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2e890006-bffb-4ac0-9eeb-7c6ef8aeef5f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2e890006-bffb-4ac0-9eeb-7c6ef8aeef5f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T18:23:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd816b20140668a0078c8c7aa460b47dbbeb0c0d5ff2ea4396c97294deac1a398","name":"浦中こういち","registered_at":"2026-06-16T05:45:23Z","symbol":"NIM0955870","token_address":"0x6299578f046d63e933b901af681fe9f93a072a2a","type":"artist","uuid":"2e890006-bffb-4ac0-9eeb-7c6ef8aeef5f"}
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 0xd816b20140668a0078c8c7aa460b47dbbeb0c0d5ff2ea4396c97294deac1a398. Chain 2 (Bitcoin): anchored in block 953988 (2026-06-16T18:23:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2e890006-bffb-4ac0-9eeb-7c6ef8aeef5f.json and https://artists.proofprofile.net/proofs/artist/2e890006-bffb-4ac0-9eeb-7c6ef8aeef5f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T18:23:32Z
  text: {"copyright_id":"0xd816b20140668a0078c8c7aa460b47dbbeb0c0d5ff2ea4396c97294deac1a398","name":"浦中こういち","registered_at":"2026-06-16T05:45:23Z","symbol":"NIM0955870","token_address":"0x6299578f046d63e933b901af681fe9f93a072a2a","type":"artist","uuid":"2e890006-bffb-4ac0-9eeb-7c6ef8aeef5f"}