MANKAI STAGE『A3!』~WINTER 2020~オールキャスト
type: MusicGroup
popularity: 5
followers: 638
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd4602ed042b52104f99d8dafd30a437951fce16d726818a1cbb411a7ee420b92
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954004
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954004
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/31f37fcc-13de-49e1-91a5-a3daee8d465e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/31f37fcc-13de-49e1-91a5-a3daee8d465e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/31f37fcc-13de-49e1-91a5-a3daee8d465e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T21:01:04Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd4602ed042b52104f99d8dafd30a437951fce16d726818a1cbb411a7ee420b92","name":"MANKAI STAGE『A3!』~WINTER 2020~オールキャスト","registered_at":"2026-06-16T06:58:35Z","symbol":"NIM0973345","token_address":"0x81b8f8028706fd264fc93166e3453f0e6e4c8ce3","type":"artist","uuid":"31f37fcc-13de-49e1-91a5-a3daee8d465e"}
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 0xd4602ed042b52104f99d8dafd30a437951fce16d726818a1cbb411a7ee420b92. Chain 2 (Bitcoin): anchored in block 954004 (2026-06-16T21:01:04Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/31f37fcc-13de-49e1-91a5-a3daee8d465e.json and https://artists.proofprofile.net/proofs/artist/31f37fcc-13de-49e1-91a5-a3daee8d465e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T21:01:04Z
  text: {"copyright_id":"0xd4602ed042b52104f99d8dafd30a437951fce16d726818a1cbb411a7ee420b92","name":"MANKAI STAGE『A3!』~WINTER 2020~オールキャスト","registered_at":"2026-06-16T06:58:35Z","symbol":"NIM0973345","token_address":"0x81b8f8028706fd264fc93166e3453f0e6e4c8ce3","type":"artist","uuid":"31f37fcc-13de-49e1-91a5-a3daee8d465e"}