rough laugh
type: MusicGroup
genre: shibuya-kei
popularity: 4
followers: 677
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc64109c1b862ef2ded108be82ed3ddab192e3aa9747479b2d57dc11d90ca1a0c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954659
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954659
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dba32dbd-1112-46e8-9fe9-b27db1a91a67.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dba32dbd-1112-46e8-9fe9-b27db1a91a67.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dba32dbd-1112-46e8-9fe9-b27db1a91a67
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T06:14:42Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc64109c1b862ef2ded108be82ed3ddab192e3aa9747479b2d57dc11d90ca1a0c","name":"rough laugh","registered_at":"2026-06-21T04:48:47Z","symbol":"NIM1824693","token_address":"0x56b5736c9dc7c17805d6559f709cd48dbcd34b54","type":"artist","uuid":"dba32dbd-1112-46e8-9fe9-b27db1a91a67"}
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 0xc64109c1b862ef2ded108be82ed3ddab192e3aa9747479b2d57dc11d90ca1a0c. Chain 2 (Bitcoin): anchored in block 954659 (2026-06-21T06:14:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dba32dbd-1112-46e8-9fe9-b27db1a91a67.json and https://artists.proofprofile.net/proofs/artist/dba32dbd-1112-46e8-9fe9-b27db1a91a67.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T06:14:42Z
  text: {"copyright_id":"0xc64109c1b862ef2ded108be82ed3ddab192e3aa9747479b2d57dc11d90ca1a0c","name":"rough laugh","registered_at":"2026-06-21T04:48:47Z","symbol":"NIM1824693","token_address":"0x56b5736c9dc7c17805d6559f709cd48dbcd34b54","type":"artist","uuid":"dba32dbd-1112-46e8-9fe9-b27db1a91a67"}
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