Antonios Kassotakis
type: MusicGroup
popularity: 4
followers: 37
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x002a6139795c8c0c9503bb5adcf833227631fcd826cde185ad5256e25d9d2341
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954048
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954048
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/41eda536-abb0-434c-8b50-c457b4a792d1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/41eda536-abb0-434c-8b50-c457b4a792d1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/41eda536-abb0-434c-8b50-c457b4a792d1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T05:00:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x002a6139795c8c0c9503bb5adcf833227631fcd826cde185ad5256e25d9d2341","name":"Antonios Kassotakis","registered_at":"2026-06-16T12:31:14Z","symbol":"NIM1052733","token_address":"0xa4bffebeb308fed7633b7329516f589b7dac922b","type":"artist","uuid":"41eda536-abb0-434c-8b50-c457b4a792d1"}
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 0x002a6139795c8c0c9503bb5adcf833227631fcd826cde185ad5256e25d9d2341. Chain 2 (Bitcoin): anchored in block 954048 (2026-06-17T05:00:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/41eda536-abb0-434c-8b50-c457b4a792d1.json and https://artists.proofprofile.net/proofs/artist/41eda536-abb0-434c-8b50-c457b4a792d1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T05:00:13Z
  text: {"copyright_id":"0x002a6139795c8c0c9503bb5adcf833227631fcd826cde185ad5256e25d9d2341","name":"Antonios Kassotakis","registered_at":"2026-06-16T12:31:14Z","symbol":"NIM1052733","token_address":"0xa4bffebeb308fed7633b7329516f589b7dac922b","type":"artist","uuid":"41eda536-abb0-434c-8b50-c457b4a792d1"}