Alexander Panagopoulos
type: MusicGroup
description: Alexander Panagopoulos is a Greek environmentalist and shipping entrepreneur. He is the chairman and chief executive officer of Arista Maritime Inc. He was previously elected as chairman of High Level
popularity: 11
followers: 231
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x6abeb897d263f11d0475d26070c987742011394892c300ff4cf64f3f494bb79d
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 953641
additional property: OTSBitcoinBlockVerifyURL
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  value: https://blockstream.info/api/block-height/953641
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3bcedc63-d182-4de8-9672-a93d170914f5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3bcedc63-d182-4de8-9672-a93d170914f5.json
additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3bcedc63-d182-4de8-9672-a93d170914f5
additional property: OTSTimestamp
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  value: 2026-06-14T13:54:28Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6abeb897d263f11d0475d26070c987742011394892c300ff4cf64f3f494bb79d","name":"Alexander Panagopoulos","registered_at":"2026-06-14T10:42:43Z","symbol":"NIM0427803","token_address":"0xbadb98dbf5dc5448f348b230e01adb047842c2b7","type":"artist","uuid":"3bcedc63-d182-4de8-9672-a93d170914f5"}
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 0x6abeb897d263f11d0475d26070c987742011394892c300ff4cf64f3f494bb79d. Chain 2 (Bitcoin): anchored in block 953641 (2026-06-14T13:54:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3bcedc63-d182-4de8-9672-a93d170914f5.json and https://artists.proofprofile.net/proofs/artist/3bcedc63-d182-4de8-9672-a93d170914f5.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T13:54:28Z
  text: {"copyright_id":"0x6abeb897d263f11d0475d26070c987742011394892c300ff4cf64f3f494bb79d","name":"Alexander Panagopoulos","registered_at":"2026-06-14T10:42:43Z","symbol":"NIM0427803","token_address":"0xbadb98dbf5dc5448f348b230e01adb047842c2b7","type":"artist","uuid":"3bcedc63-d182-4de8-9672-a93d170914f5"}
album: Otherwise
  type: MusicAlbum
  date published: 2020-02-14
album: Together
  type: MusicAlbum
  date published: 2020-03-06
  track: Together
    type: MusicRecording
    duration: PT2M3S
    duration ms: 123125
    explicit: false
    by artist: Alexander Panagopoulos
    in album: Together
      type: MusicAlbum
      date published: 2020-03-06
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    additional property: CopyrightID
    additional property: CopyrightStatus
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    additional property: OTSBitcoinBlockVerifyURL
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    additional property: OTSVerificationAPI
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      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE5IB2000353
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T22:01:25Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x1039e9fbc4aa9ca4d6d881ab08d9ae187868f63d730843c33f13ce3de9892155. Chain 2 (Bitcoin): anchored in block 957763 (2026-07-12T22:01:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE5IB2000353 — a six-check JSON result.
      date published: 2026-07-12T22:01:25Z
    audio: Together
      type: AudioObject
      additional property: Tempo (BPM)
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      additional property: Mode (Major/Minor)
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      additional property: Acousticness
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      additional property: Instrumentalness
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      additional property: Liveness
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      additional property: Valence (Positivity)
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      additional property: Loudness (dB)
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      additional property: Key Name
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      additional property: Mode Name
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