Mozart's Sister
type: MusicGroup
description: Mozart's Sister (French title: Nannerl, la sœur de Mozart) is a 2010 French drama film written and directed by René Féret, and starring two of his daughters. It presents a fictional account of the ear
popularity: 5
followers: 3133
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf9d2ba987747ce3a0eaea2e9361922638d37a5d7332acbb38030fd462a9fe17f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d8301b45-08e7-4ca3-bef0-36d5c9cfc86d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d8301b45-08e7-4ca3-bef0-36d5c9cfc86d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d8301b45-08e7-4ca3-bef0-36d5c9cfc86d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf9d2ba987747ce3a0eaea2e9361922638d37a5d7332acbb38030fd462a9fe17f","name":"Mozart's Sister","registered_at":"2026-06-21T03:53:54Z","symbol":"NIM1811339","token_address":"0x10285842b85ddb18f20381560f21caa4aa1c1071","type":"artist","uuid":"d8301b45-08e7-4ca3-bef0-36d5c9cfc86d"}
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 0xf9d2ba987747ce3a0eaea2e9361922638d37a5d7332acbb38030fd462a9fe17f. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d8301b45-08e7-4ca3-bef0-36d5c9cfc86d.json and https://artists.proofprofile.net/proofs/artist/d8301b45-08e7-4ca3-bef0-36d5c9cfc86d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xf9d2ba987747ce3a0eaea2e9361922638d37a5d7332acbb38030fd462a9fe17f","name":"Mozart's Sister","registered_at":"2026-06-21T03:53:54Z","symbol":"NIM1811339","token_address":"0x10285842b85ddb18f20381560f21caa4aa1c1071","type":"artist","uuid":"d8301b45-08e7-4ca3-bef0-36d5c9cfc86d"}
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