Marie Piumi
type: MusicGroup
popularity: 3
followers: 1752
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x85c432648e12c00aac71ee2dda5f36e800743291de71fced44df37ed457c3bce
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f9985bb7-9914-4e6d-8de8-fa318b484247.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f9985bb7-9914-4e6d-8de8-fa318b484247.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f9985bb7-9914-4e6d-8de8-fa318b484247
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x85c432648e12c00aac71ee2dda5f36e800743291de71fced44df37ed457c3bce","name":"Marie Piumi","registered_at":"2026-06-21T16:39:48Z","symbol":"NIM1975415","token_address":"0xe5fe72ae734754098befa027ffa091e8fcbea671","type":"artist","uuid":"f9985bb7-9914-4e6d-8de8-fa318b484247"}
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 0x85c432648e12c00aac71ee2dda5f36e800743291de71fced44df37ed457c3bce. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f9985bb7-9914-4e6d-8de8-fa318b484247.json and https://artists.proofprofile.net/proofs/artist/f9985bb7-9914-4e6d-8de8-fa318b484247.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x85c432648e12c00aac71ee2dda5f36e800743291de71fced44df37ed457c3bce","name":"Marie Piumi","registered_at":"2026-06-21T16:39:48Z","symbol":"NIM1975415","token_address":"0xe5fe72ae734754098befa027ffa091e8fcbea671","type":"artist","uuid":"f9985bb7-9914-4e6d-8de8-fa318b484247"}
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2023-10-30
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  type: MusicAlbum
  date published: 2024-07-24
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  type: MusicAlbum
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album: Coucher de soleil (Extended Version)
  type: MusicAlbum
  date published: 2025-02-10