Matthew Sabatella and the Rambling String Band
type: MusicGroup
popularity: 13
followers: 489
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additional property: OTSBitcoinBlock
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34aa9bc00b0cc557cafb6bdde10858d8a5290ba7b5b3dcbf3b22de2673776f99. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d7223168-68b9-4070-a964-d46eb6a4f17b.json and https://artists.proofprofile.net/proofs/artist/d7223168-68b9-4070-a964-d46eb6a4f17b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T12:56:12Z
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album: Over a Wide and Fruitful Land (Ballad of America Volume 1)
  type: MusicAlbum
  date published: 2005-01-01
album: America Singing (Ballad Of America Volume 2)
  type: MusicAlbum
  date published: 2006-11-09
album: Songs in the Life of Abraham Lincoln (Ballad of America Vol. 3)
  type: MusicAlbum
  date published: 2009-02-04
  track: Lincoln and Liberty
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    by artist: Matthew Sabatella and the Rambling String Band
    in album: Songs in the Life of Abraham Lincoln (Ballad of America Vol. 3)
      type: MusicAlbum
      date published: 2009-02-04
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    additional property: OTSTimestamp
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      value: 2026-07-12T21:55:15Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x526ab008037fdf26c9476aaf5633dd4091a0ad04e24615d22d0018434cfdffa5. Chain 2 (Bitcoin): anchored in block 957761 (2026-07-12T21:55:15Z), 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/USCGH0936015.
      date published: 2026-07-12T21:55:15Z
    audio: Lincoln and Liberty
      type: AudioObject
      additional property: Tempo (BPM)
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        value: 94.458
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        type: PropertyValue
        value: 1
      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: Liveness
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      additional property: Valence (Positivity)
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      additional property: Loudness (dB)
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        value: D
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  track: Dixie's Land
    type: MusicRecording
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    by artist: Matthew Sabatella and the Rambling String Band
    in album: Songs in the Life of Abraham Lincoln (Ballad of America Vol. 3)
      type: MusicAlbum
      date published: 2009-02-04
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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 0x13521f6b290a1ba24a09c97f6186ebee6899bb6ad27f59c67fd7bd824915b26d. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:22:56Z), 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/USCGH0936020.
      date published: 2026-07-16T05:22:56Z
    audio: Dixie's Land
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 184.033
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        value: 1
      additional property: Time Signature
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        value: 4
      additional property: Danceability
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      additional property: Energy
        type: PropertyValue
        value: 0.62
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
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      additional property: Instrumentalness
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      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: America the Beautiful
album: When Johnny Comes Marching Home

Valence (Positivity)
type: PropertyValue
value: 0.844

Loudness (dB)
type: PropertyValue
value: -5.143

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Major

America the Beautiful
type: MusicAlbum
date published: 2016-03-09

When Johnny Comes Marching Home
type: MusicAlbum
date published: 2016-03-09