Cassandre
type: MusicGroup
genre: french pop
description: Cassandre, pseudonym of Adolphe Jean-Marie Mouron Notice d'autorité personne : Cassandre, BnF, according to the international pseudonym convention described in the BnF authority file. (24 January 1901
popularity: 7
followers: 1492
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfc3d02f71854f3b8b8346998f8fb1b95e31e59df1b2266e539212e5a521fdeac
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954513
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9d0495fe-024f-493c-8724-d11c767f7c47.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9d0495fe-024f-493c-8724-d11c767f7c47.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9d0495fe-024f-493c-8724-d11c767f7c47
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T06:31:18Z
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 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 0xfc3d02f71854f3b8b8346998f8fb1b95e31e59df1b2266e539212e5a521fdeac. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9d0495fe-024f-493c-8724-d11c767f7c47.json and https://artists.proofprofile.net/proofs/artist/9d0495fe-024f-493c-8724-d11c767f7c47.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T06:31:18Z
album: Cassandre (Deluxe)
  type: MusicAlbum
  date published: 2014
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  type: MusicAlbum
  date published: 2014-01-12
album: Cassandre
  type: MusicAlbum
  date published: 2014-06-09
album: Cassandre
  type: MusicAlbum
  date published: 2014-10-06
album: Cassandre
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  date published: 2014-10-06
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  type: MusicAlbum
  date published: 2015
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  date published: 2015-06-29
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  date published: 2018-09-14
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  type: MusicAlbum
  date published: 2018-09-14
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  date published: 2021-09-22
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  date published: 2021-10-20
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  date published: 2021-12-08
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  type: MusicAlbum
  date published: 2024-03-21