Nikitas Kotsopoulos
type: MusicGroup
genre: traditional music
popularity: 2
followers: 31
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4e986db5d6ba60d67a599cb5caf2b39f68a10b9d91a64fb032e136b396afe946
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954623
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954623
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cb8269f9-cc70-4490-a585-734f74331a2d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cb8269f9-cc70-4490-a585-734f74331a2d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cb8269f9-cc70-4490-a585-734f74331a2d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:40:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4e986db5d6ba60d67a599cb5caf2b39f68a10b9d91a64fb032e136b396afe946","name":"Nikitas Kotsopoulos","registered_at":"2026-06-20T23:11:58Z","symbol":"NIM1745106","token_address":"0x941f91558a7470969773f8e79df48d43037399ba","type":"artist","uuid":"cb8269f9-cc70-4490-a585-734f74331a2d"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e986db5d6ba60d67a599cb5caf2b39f68a10b9d91a64fb032e136b396afe946. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cb8269f9-cc70-4490-a585-734f74331a2d.json and https://artists.proofprofile.net/proofs/artist/cb8269f9-cc70-4490-a585-734f74331a2d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:40:06Z
  text: {"copyright_id":"0x4e986db5d6ba60d67a599cb5caf2b39f68a10b9d91a64fb032e136b396afe946","name":"Nikitas Kotsopoulos","registered_at":"2026-06-20T23:11:58Z","symbol":"NIM1745106","token_address":"0x941f91558a7470969773f8e79df48d43037399ba","type":"artist","uuid":"cb8269f9-cc70-4490-a585-734f74331a2d"}
album: The Art of the Greek Folk Clarinet - 78 rpm Recordings 1920-1933
  type: MusicAlbum
  date published: 1998-05-04