Chappa Jan
type: MusicGroup
genre: ragga
popularity: 4
followers: 401
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb3be41c484d356cd078c65f95c4d4b65379aa579cb0c03f30f124e43b0bc300d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5645ff1d-a6cb-41a8-a6fb-6abd03510931.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5645ff1d-a6cb-41a8-a6fb-6abd03510931.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5645ff1d-a6cb-41a8-a6fb-6abd03510931
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb3be41c484d356cd078c65f95c4d4b65379aa579cb0c03f30f124e43b0bc300d","name":"Chappa Jan","registered_at":"2026-06-16T19:43:43Z","symbol":"NIM1155920","token_address":"0x23c2cdc4fe42fe9882c80cc77a855aaf091a022a","type":"artist","uuid":"5645ff1d-a6cb-41a8-a6fb-6abd03510931"}
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 0xb3be41c484d356cd078c65f95c4d4b65379aa579cb0c03f30f124e43b0bc300d. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5645ff1d-a6cb-41a8-a6fb-6abd03510931.json and https://artists.proofprofile.net/proofs/artist/5645ff1d-a6cb-41a8-a6fb-6abd03510931.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xb3be41c484d356cd078c65f95c4d4b65379aa579cb0c03f30f124e43b0bc300d","name":"Chappa Jan","registered_at":"2026-06-16T19:43:43Z","symbol":"NIM1155920","token_address":"0x23c2cdc4fe42fe9882c80cc77a855aaf091a022a","type":"artist","uuid":"5645ff1d-a6cb-41a8-a6fb-6abd03510931"}
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