Ken Lappen
type: MusicGroup
popularity: 5
followers: 14
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xee2ab66d15d26c0c243f54353f6781ae68b9c0db315502f20b05a2405a486350
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/96184b59-311d-477b-96cd-fa08c763eebf.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/96184b59-311d-477b-96cd-fa08c763eebf.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/96184b59-311d-477b-96cd-fa08c763eebf
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xee2ab66d15d26c0c243f54353f6781ae68b9c0db315502f20b05a2405a486350","name":"Ken Lappen","registered_at":"2026-06-17T18:21:33Z","symbol":"NIM1479788","token_address":"0x784ca78a166bca00e2e05e397c7af97c5e9cafbd","type":"artist","uuid":"96184b59-311d-477b-96cd-fa08c763eebf"}
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 0xee2ab66d15d26c0c243f54353f6781ae68b9c0db315502f20b05a2405a486350. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/96184b59-311d-477b-96cd-fa08c763eebf.json and https://artists.proofprofile.net/proofs/artist/96184b59-311d-477b-96cd-fa08c763eebf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0xee2ab66d15d26c0c243f54353f6781ae68b9c0db315502f20b05a2405a486350","name":"Ken Lappen","registered_at":"2026-06-17T18:21:33Z","symbol":"NIM1479788","token_address":"0x784ca78a166bca00e2e05e397c7af97c5e9cafbd","type":"artist","uuid":"96184b59-311d-477b-96cd-fa08c763eebf"}
album: KOTA KALISAMA
  type: MusicAlbum
  date published: 2025-11-04