Polonius
type: MusicGroup
genre: avant-garde
description: Polonius is a character in William Shakespeare's play Hamlet. He is the chief counsellor of the play's ultimate villain, Claudius, and the father of Laertes and Ophelia. Generally regarded as wrong i
popularity: 15
followers: 137
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x578b5f499c54edb4a61e4713fe8e74606d75403b3e119507924ddac715532774
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953742
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953742
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9abda89b-cd99-4830-819c-2449d599fe30.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9abda89b-cd99-4830-819c-2449d599fe30.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9abda89b-cd99-4830-819c-2449d599fe30
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T04:47:56Z
additional property: OTSCanonicalRecord
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 0x578b5f499c54edb4a61e4713fe8e74606d75403b3e119507924ddac715532774. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9abda89b-cd99-4830-819c-2449d599fe30.json and https://artists.proofprofile.net/proofs/artist/9abda89b-cd99-4830-819c-2449d599fe30.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T09:50:11Z
album: Polonius (Πολoνιyσ)
  type: MusicAlbum
  date published: 2016-04-24
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  type: MusicAlbum
  date published: 2019-01-16
album: Polonius
  type: MusicAlbum
  date published: 2024-01-10
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  type: MusicAlbum
  date published: 2024-12-16
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  type: MusicAlbum
  date published: 2025-04-18