スカポンタス
type: MusicGroup
genre: enka
genre: kayokyoku
genre: shibuya-kei
popularity: 2
followers: 15
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8398ce17882d0bd852793894cb85e8aece2a1ffd62a2fa05a3c0ea06e2a34e38
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b12fc875-12da-4e4a-a246-e3c94c4a1909.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b12fc875-12da-4e4a-a246-e3c94c4a1909.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b12fc875-12da-4e4a-a246-e3c94c4a1909
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8398ce17882d0bd852793894cb85e8aece2a1ffd62a2fa05a3c0ea06e2a34e38","name":"スカポンタス","registered_at":"2026-06-20T12:50:11Z","symbol":"NIM1615152","token_address":"0x00518d3e2c72a35586a38c0dbb72fc81a4fec800","type":"artist","uuid":"b12fc875-12da-4e4a-a246-e3c94c4a1909"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8398ce17882d0bd852793894cb85e8aece2a1ffd62a2fa05a3c0ea06e2a34e38. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b12fc875-12da-4e4a-a246-e3c94c4a1909.json and https://artists.proofprofile.net/proofs/artist/b12fc875-12da-4e4a-a246-e3c94c4a1909.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x8398ce17882d0bd852793894cb85e8aece2a1ffd62a2fa05a3c0ea06e2a34e38","name":"スカポンタス","registered_at":"2026-06-20T12:50:11Z","symbol":"NIM1615152","token_address":"0x00518d3e2c72a35586a38c0dbb72fc81a4fec800","type":"artist","uuid":"b12fc875-12da-4e4a-a246-e3c94c4a1909"}