David Fischer
type: MusicGroup
description: David Fischer may refer to: David Fischer (ice hockey) (born 1988), American hockey player David Fischer (weightlifter) (born 1998), Austrian-Bulgarian weightlifter David C. Fischer, Special Assistan
popularity: 2
followers: 101
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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  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 0x28fb18b3d4da104b09d09e31be5be836e6068ec426bcf8b895f85f8202c1f0d6. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e87fffc7-9eac-4dfb-bdc8-90738bcd7ab6.json and https://artists.proofprofile.net/proofs/artist/e87fffc7-9eac-4dfb-bdc8-90738bcd7ab6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T11:50:32Z
  text: {"copyright_id":"0x28fb18b3d4da104b09d09e31be5be836e6068ec426bcf8b895f85f8202c1f0d6","name":"David Fischer","registered_at":"2026-06-21T09:15:25Z","symbol":"NIM1885790","token_address":"0x44467f7e4c197f7de77ba7a30bb6ae04fc948a6d","type":"artist","uuid":"e87fffc7-9eac-4dfb-bdc8-90738bcd7ab6"}
album: Catholic Classics, Vol. 5: Simple Gift of Praise
  type: MusicAlbum
  date published: 2000-01-01
album: Catholic Classics, Vol. 5: Simple Gift of Praise
  type: MusicAlbum
  date published: 2000-01-01
album: Meditation
  type: MusicAlbum
  date published: 2013-02-10
track: You Will Be My Witnesses
  type: MusicRecording
  duration: PT3M38S
  duration ms: 218933
  explicit: false
  by artist: David Fischer
  by artist: Lucia Newell
  in album: Rejoice and Be Glad: (Y)Ours Is the Kingdom of God
    type: MusicAlbum
    date published: 2019-05-03
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  additional property: OTSVerificationAPI
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    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7851900044
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T15:20:15Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x37adf019012fda4c3d22a246a7df9d7b86221d5892ccd46597328c7ba30d0a58. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7851900044.
    date published: 2026-07-31T15:20:15Z
  audio: You Will Be My Witnesses
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    additional property: Danceability
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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      value: F
    additional property: Mode Name
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