Martin Lopez
type: MusicGroup
description: Martin Walter López Cardozo (born 20 May 1978 in Stockholm) is a Swedish-Uruguayan drummer, currently a member and co-founder of progressive metal group Soen, but best known as the ex-drummer of Swedi
popularity: 2
followers: 247
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSRecordURL
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additional property: OTSTimestamp
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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 0x743bc78f44e50e60eec564f25d06ff05470b41d6bc0991bfda3318016c37d225. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/72d7ec86-1e71-4cf1-930a-1bdd7677eb53.json and https://artists.proofprofile.net/proofs/artist/72d7ec86-1e71-4cf1-930a-1bdd7677eb53.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T08:11:48Z
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album: El Siguiente Camino
  type: MusicAlbum
  date published: 2022-10-14
album: Resistol Amor
  type: MusicAlbum
  date published: 2023-05-28
album: Resistol amor
  type: MusicAlbum
  date published: 2023-06-16
album: Acabo De Elegir
  type: MusicAlbum
  date published: 2023-06-23
album: Acabo de elegir
  type: MusicAlbum
  date published: 2023-07-14
album: Aplácate
  type: MusicAlbum
  date published: 2023-09-22
album: Mota Rusticada
  type: MusicAlbum
  date published: 2023-10-29
  track: Mota Rusticada
    type: MusicRecording
    duration: PT2M30S
    duration ms: 150517
    explicit: true
    by artist: Martin Lopez
    in album: Mota Rusticada
      type: MusicAlbum
      date published: 2023-10-29
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0L2348095
    additional property: OTSTimestamp
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      value: 2026-07-29T15:22:21Z
    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 0x5706607ff752f81ba43dcb8e3a8fdacb79996c7e4f4322cac6570eca88581dcc. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0L2348095 — a six-check JSON result.
      date published: 2026-07-29T15:22:21Z
    audio: Mota Rusticada
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      additional property: Tempo (BPM)
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      additional property: Musical Key
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      additional property: Mode (Major/Minor)
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        value: 0
      additional property: Time Signature
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        value: 5
      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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        value: 0.627
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.859
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Mota rusticada
  type: MusicAlbum
  date published: 2023-11-17
album: Consígueme
  type: MusicAlbum
  date published: 2024-02-16
album: BB
  type: MusicAlbum
  date published: 2024-03-22
album: $1
  type: MusicAlbum
  date published: 2024-05-17
album: Passion Y Mas
  type: MusicAlbum
  date published: 2024-06-14
album: Resisto el Amor
  type: MusicAlbum
  date published: 2024-08-30
album: LA
  type: MusicAlbum
  date published: 2025-04-11