Martin Graff
type: MusicGroup
description: Martin Graff (22 June 1944 – 4 August 2021) was a French pastor, writer, screenwriter, and cabaretist. Biography After his studies in Protestant theology, he worked for three years as a pastor in Str
popularity: 4
followers: 159
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x10ea0574a58d401728fc3c83e41c78271f7c41a26eeb62f4302c3b1fbec5006f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953922
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953922
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1a743f5a-2b54-4c7a-95a7-eb928d1a0d39.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1a743f5a-2b54-4c7a-95a7-eb928d1a0d39.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1a743f5a-2b54-4c7a-95a7-eb928d1a0d39
additional property: OTSTimestamp
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  value: 2026-06-16T09:36:34Z
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  type: PropertyValue
  value: {"copyright_id":"0x10ea0574a58d401728fc3c83e41c78271f7c41a26eeb62f4302c3b1fbec5006f","name":"Martin Graff","registered_at":"2026-06-15T23:00:26Z","symbol":"NIM0859142","token_address":"0xab6a0601366013e335224b087cf54358d3659679","type":"artist","uuid":"1a743f5a-2b54-4c7a-95a7-eb928d1a0d39"}
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 0x10ea0574a58d401728fc3c83e41c78271f7c41a26eeb62f4302c3b1fbec5006f. Chain 2 (Bitcoin): anchored in block 953922 (2026-06-16T09:36:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1a743f5a-2b54-4c7a-95a7-eb928d1a0d39.json and https://artists.proofprofile.net/proofs/artist/1a743f5a-2b54-4c7a-95a7-eb928d1a0d39.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T09:36:34Z
  text: {"copyright_id":"0x10ea0574a58d401728fc3c83e41c78271f7c41a26eeb62f4302c3b1fbec5006f","name":"Martin Graff","registered_at":"2026-06-15T23:00:26Z","symbol":"NIM0859142","token_address":"0xab6a0601366013e335224b087cf54358d3659679","type":"artist","uuid":"1a743f5a-2b54-4c7a-95a7-eb928d1a0d39"}
album: Trips for Piano
  type: MusicAlbum
  date published: 2021-07-01
album: Window Rain
  type: MusicAlbum
  date published: 2023-10-28
album: Slumberland
  type: MusicAlbum
  date published: 2024-04-01
album: Socko
  type: MusicAlbum
  date published: 2024-06-07
album: Getaway
  type: MusicAlbum
  date published: 2025-01-03
album: Leaves
  type: MusicAlbum
  date published: 2025-05-15
  track: Leaves
    type: MusicRecording
    duration: PT3M58S
    duration ms: 238859
    explicit: false
    by artist: Martin Graff
    in album: Leaves
      type: MusicAlbum
      date published: 2025-05-15
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    additional property: OTSBitcoinBlockVerifyURL
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM82531709
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T18:42:38Z
    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 0xc50807ce38f8faa85fb8a3ab56db48dc7609429ab3d2ba87c8a3c6f0a080ae07. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/USHM82531709.
      date published: 2026-07-18T18:42:38Z
    audio: Leaves
      type: AudioObject
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      additional property: Musical Key
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      additional property: Mode (Major/Minor)
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      additional property: Time Signature
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      additional property: Danceability
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      additional property: Energy
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      additional property: Speechiness
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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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        value: -24.612
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major