Κώστας Βέρδης
type: MusicGroup
genre: tropical music
popularity: 4
followers: 76
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9c395bb2771f9c81f7dc240e82cd6cbeb5b69b01723f9233165575a2d5ac0ea4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953867
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953867
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0582d84b-095a-4a1b-865d-16d333f04fc4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0582d84b-095a-4a1b-865d-16d333f04fc4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0582d84b-095a-4a1b-865d-16d333f04fc4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T01:09:47Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9c395bb2771f9c81f7dc240e82cd6cbeb5b69b01723f9233165575a2d5ac0ea4","name":"Κώστας Βέρδης","registered_at":"2026-06-15T15:32:11Z","symbol":"NIM0752211","token_address":"0x169e0621f368ace126f8a6f190b4abb632a205b0","type":"artist","uuid":"0582d84b-095a-4a1b-865d-16d333f04fc4"}
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 0x9c395bb2771f9c81f7dc240e82cd6cbeb5b69b01723f9233165575a2d5ac0ea4. Chain 2 (Bitcoin): anchored in block 953867 (2026-06-16T01:09:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0582d84b-095a-4a1b-865d-16d333f04fc4.json and https://artists.proofprofile.net/proofs/artist/0582d84b-095a-4a1b-865d-16d333f04fc4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T01:09:47Z
  text: {"copyright_id":"0x9c395bb2771f9c81f7dc240e82cd6cbeb5b69b01723f9233165575a2d5ac0ea4","name":"Κώστας Βέρδης","registered_at":"2026-06-15T15:32:11Z","symbol":"NIM0752211","token_address":"0x169e0621f368ace126f8a6f190b4abb632a205b0","type":"artist","uuid":"0582d84b-095a-4a1b-865d-16d333f04fc4"}
album: Στην δική μου γειτονιά
  type: MusicAlbum
  date published: 2021-10-23