Valdas Lacko
type: MusicGroup
popularity: 6
followers: 194
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6d2977279120e0fd44107f1c4d52e2c10576bb855d72703c25f78b5df24044ac
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953962
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953962
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/274cdd57-159a-4030-9e1a-1616efd76042.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/274cdd57-159a-4030-9e1a-1616efd76042.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/274cdd57-159a-4030-9e1a-1616efd76042
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T15:03:47Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6d2977279120e0fd44107f1c4d52e2c10576bb855d72703c25f78b5df24044ac","name":"Valdas Lacko","registered_at":"2026-06-16T03:18:10Z","symbol":"NIM0920694","token_address":"0x634a0a7f8d0129651fff6a1b44b637fd442a009b","type":"artist","uuid":"274cdd57-159a-4030-9e1a-1616efd76042"}
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 0x6d2977279120e0fd44107f1c4d52e2c10576bb855d72703c25f78b5df24044ac. Chain 2 (Bitcoin): anchored in block 953962 (2026-06-16T15:03:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/274cdd57-159a-4030-9e1a-1616efd76042.json and https://artists.proofprofile.net/proofs/artist/274cdd57-159a-4030-9e1a-1616efd76042.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T15:03:47Z
  text: {"copyright_id":"0x6d2977279120e0fd44107f1c4d52e2c10576bb855d72703c25f78b5df24044ac","name":"Valdas Lacko","registered_at":"2026-06-16T03:18:10Z","symbol":"NIM0920694","token_address":"0x634a0a7f8d0129651fff6a1b44b637fd442a009b","type":"artist","uuid":"274cdd57-159a-4030-9e1a-1616efd76042"}
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