Oscar Kosarin
type: MusicGroup
popularity: 3
followers: 47
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6b79042f1a318599a863a3eeab5b379be5214359765a0db0a7a1956ebea1326e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8cc52418-c1e3-4879-b302-0b4eaafbea27.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8cc52418-c1e3-4879-b302-0b4eaafbea27.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8cc52418-c1e3-4879-b302-0b4eaafbea27
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6b79042f1a318599a863a3eeab5b379be5214359765a0db0a7a1956ebea1326e","name":"Oscar Kosarin","registered_at":"2026-06-17T14:48:24Z","symbol":"NIM1428886","token_address":"0x7a6d40e45a0d9368b56b83c95113b327488ed99c","type":"artist","uuid":"8cc52418-c1e3-4879-b302-0b4eaafbea27"}
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 0x6b79042f1a318599a863a3eeab5b379be5214359765a0db0a7a1956ebea1326e. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8cc52418-c1e3-4879-b302-0b4eaafbea27.json and https://artists.proofprofile.net/proofs/artist/8cc52418-c1e3-4879-b302-0b4eaafbea27.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x6b79042f1a318599a863a3eeab5b379be5214359765a0db0a7a1956ebea1326e","name":"Oscar Kosarin","registered_at":"2026-06-17T14:48:24Z","symbol":"NIM1428886","token_address":"0x7a6d40e45a0d9368b56b83c95113b327488ed99c","type":"artist","uuid":"8cc52418-c1e3-4879-b302-0b4eaafbea27"}