Amanda Rontgen-Maier
type: MusicGroup
genre: chamber music
popularity: 6
followers: 294
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaaaf473bee64185aac8bc06556bd52f3cc159f4bcd27abb6570c5f204977376f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953864
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953864
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/03f41a63-a8e2-45bf-ac07-4ea5e557418a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/03f41a63-a8e2-45bf-ac07-4ea5e557418a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/03f41a63-a8e2-45bf-ac07-4ea5e557418a
additional property: OTSTimestamp
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  value: 2026-06-16T00:30:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaaf473bee64185aac8bc06556bd52f3cc159f4bcd27abb6570c5f204977376f. Chain 2 (Bitcoin): anchored in block 953864 (2026-06-16T00:30:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/03f41a63-a8e2-45bf-ac07-4ea5e557418a.json and https://artists.proofprofile.net/proofs/artist/03f41a63-a8e2-45bf-ac07-4ea5e557418a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T00:30:31Z
  text: {"copyright_id":"0xaaaf473bee64185aac8bc06556bd52f3cc159f4bcd27abb6570c5f204977376f","name":"Amanda Rontgen-Maier","registered_at":"2026-06-15T14:54:07Z","symbol":"NIM0743120","token_address":"0x3fa79c178363294c765d46ad51ccc582e59741cc","type":"artist","uuid":"03f41a63-a8e2-45bf-ac07-4ea5e557418a"}
album: Amanda Maier: Complete Works
  type: MusicAlbum
  date published: 2019-06-15
album: Amanda Maier: Complete Works
  type: MusicAlbum
  date published: 2019-06-15
album: Violin Sonata in B Minor, Op. 6: II. Andantino – Allegretto, un poco vivace
  type: MusicAlbum
  date published: 2025-06-27
album: Six Pieces for Violin & Piano: III. Lento (Arr. for Violin & Harp by Esther Abrami)
  type: MusicAlbum
  date published: 2025-08-08