John Chryssavgis
type: MusicGroup
genre: gregorian chant
description: thumb|John Chryssavgis in 2014 John Chryssavgis (born 1 April 1958) is an Orthodox Christian theologian who serves as advisor to the Ecumenical Patriarch on environmental issues. He is a clergyman o
popularity: 13
followers: 26
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf63836c8982df9530f3393df6e4a3ac212b57bae6b4a4e70d90566219fd56bad
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953626
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953626
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/24f0ee3f-c6d7-4251-b338-dc196c9a1c63.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/24f0ee3f-c6d7-4251-b338-dc196c9a1c63.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/24f0ee3f-c6d7-4251-b338-dc196c9a1c63
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T11:41:45Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf63836c8982df9530f3393df6e4a3ac212b57bae6b4a4e70d90566219fd56bad","name":"John Chryssavgis","registered_at":"2026-06-14T08:22:30Z","symbol":"NIM0394354","token_address":"0xa32a209830177ac64b4056afa4e89ad9260c0e1e","type":"artist","uuid":"24f0ee3f-c6d7-4251-b338-dc196c9a1c63"}
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 0xf63836c8982df9530f3393df6e4a3ac212b57bae6b4a4e70d90566219fd56bad. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/24f0ee3f-c6d7-4251-b338-dc196c9a1c63.json and https://artists.proofprofile.net/proofs/artist/24f0ee3f-c6d7-4251-b338-dc196c9a1c63.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T11:41:45Z
  text: {"copyright_id":"0xf63836c8982df9530f3393df6e4a3ac212b57bae6b4a4e70d90566219fd56bad","name":"John Chryssavgis","registered_at":"2026-06-14T08:22:30Z","symbol":"NIM0394354","token_address":"0xa32a209830177ac64b4056afa4e89ad9260c0e1e","type":"artist","uuid":"24f0ee3f-c6d7-4251-b338-dc196c9a1c63"}