Mark Daniel
type: MusicGroup
genre: opm
description: Mark Daniel (January 4, 1900 — November 25, 1940; birth name: Daniel-Mordkhe Meyerovich, later Mark Meyerovich) was a Jewish Soviet writer and playwright. In Yiddish he signed himself as M.Daniel ().
popularity: 12
followers: 487
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51104c958970d138a7b9e85b21b2ab3f99ef239dec7952e23149b9f3da9a0de9. Chain 2 (Bitcoin): anchored in block 953694 (2026-06-14T21:38:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6b762517-9186-4646-9a89-1991a062d843.json and https://artists.proofprofile.net/proofs/artist/6b762517-9186-4646-9a89-1991a062d843.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T21:38:09Z
  text: {"copyright_id":"0x51104c958970d138a7b9e85b21b2ab3f99ef239dec7952e23149b9f3da9a0de9","name":"Mark Daniel","registered_at":"2026-06-14T15:48:34Z","symbol":"NIM0500783","token_address":"0x84d66e7b029e90f0cd3c2488dc335a7f5d678177","type":"artist","uuid":"6b762517-9186-4646-9a89-1991a062d843"}
album: Guniguni
  type: MusicAlbum
  date published: 2022-02-15
album: Ayaw
  type: MusicAlbum
  date published: 2023-08-25
album: Gabi
  type: MusicAlbum
  date published: 2024-09-13
album: Bat Sayo Pa
  type: MusicAlbum
  date published: 2025-05-30
  track: Bat Sayo Pa
    type: MusicRecording
    duration: PT4M30S
    duration ms: 270362
    explicit: false
    by artist: Mark Daniel
    in album: Bat Sayo Pa
      type: MusicAlbum
      date published: 2025-05-30
    genre: opm
    isrc code: AUBEC2587328
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      value: https://blockstream.info/api/block-height/956476
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUBEC2587328
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T09:04:44Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3626422a8718619c468dcc79f1989ffea375e65feb57619be16e7d282b0f0ce6. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/AUBEC2587328.
      date published: 2026-07-03T09:04:44Z
    audio: Bat Sayo Pa
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
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      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
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      additional property: Time Signature
        type: PropertyValue
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      additional property: Danceability
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      additional property: Energy
        type: PropertyValue
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      additional property: Speechiness
        type: PropertyValue
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      additional property: Acousticness
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      additional property: Instrumentalness
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      additional property: Liveness
        type: PropertyValue
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      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.573
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.184
      additional property: Key Name
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        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major