Tommy Marz
type: MusicGroup
description: Tommy Marz is an American singer-songwriter, guitarist and founder of the Tommy Marz Band. Marz started playing drums at the age of 10 and was a member of the Detroit-based Ann Arbor Trail Marching B
popularity: 14
followers: 2349
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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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-14T23:32:42Z
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album: Rival
  type: MusicAlbum
  date published: 2012-01-31
album: I Want You
  type: MusicAlbum
  date published: 2012-06-26
album: Play. Listen. Rewind. Repeat
  type: MusicAlbum
  date published: 2013-06-18
album: Missing
  type: MusicAlbum
  date published: 2019-04-19
album: Blurry
  type: MusicAlbum
  date published: 2019-06-21
album: Stuck in the Middle With You
  type: MusicAlbum
  date published: 2020-08-19
album: Summer Bummer
  type: MusicAlbum
  date published: 2020-09-09
album: Chasing Light
  type: MusicAlbum
  date published: 2020-09-23
album: Summer Treasure
  type: MusicAlbum
  date published: 2021-09-10
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      type: MusicAlbum
      date published: 2021-09-10
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    additional property: OTSVerifyInstructions
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-17T23:17:53Z
    audio: Summer Treasure
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        value: 103.036
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      additional property: Valence (Positivity)
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        value: Ab
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album: From the Dining Table
  type: MusicAlbum
  date published: 2021-11-11
album: 15
  type: MusicAlbum
  date published: 2022-04-15
album: Human Kind
  type: MusicAlbum
  date published: 2022-10-14
album: Never Look Back
  type: MusicAlbum
  date published: 2023-03-31
  track: Never Look Back
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    duration: PT3M15S
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    by artist: Tommy Marz
    in album: Never Look Back
      type: MusicAlbum
      date published: 2023-03-31
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    additional property: OTSVerifyInstructions
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    subject of: OpenTimestamps Proof of Existence
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      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b856e936d33b01f54ad1fffbb3af9794dfc83bf6fab8fe227d2c998eede24d9. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TCAGX2353443.
      date published: 2026-07-03T01:01:38Z
    audio: Never Look Back
album: 15 (Acoustic)
album: Bebe Electrico

Never Look Back
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15 (Acoustic)
type: MusicAlbum
date published: 2023-09-01
track: 15 (Acoustic)
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  by artist: Tommy Marz
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    type: MusicAlbum
    date published: 2023-09-01
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  additional property: OTSTimestamp
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  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 0x92498a3ce1c41715dd5b6a1c3f5d6022a8828405beb2ad3d46e14698fb5306ee. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/TCAHI2326024.
    date published: 2026-07-04T14:03:39Z
  audio: 15 (Acoustic)
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Bebe Electrico
type: MusicAlbum
date published: 2024-08-02