Matt Marble
type: MusicGroup
genre: indie folk
popularity: 7
followers: 861
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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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x292aa7910576d95477efad214b10c0a9de0756d9e374e5f98f55e767a23e259f. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eb14063c-b72e-4e05-b354-8bd78d00cb2d.json and https://artists.proofprofile.net/proofs/artist/eb14063c-b72e-4e05-b354-8bd78d00cb2d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
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album: Faces of Sound
  type: MusicAlbum
  date published: 2015-10-21
album: Song of Saptarshi (In Memory of Robert T. Browne)
  type: MusicAlbum
  date published: 2016-01-12
album: Twilights
  type: MusicAlbum
  date published: 2016-08-29
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    by artist: Matt Marble
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      type: MusicAlbum
      date published: 2016-08-29
    genre: indie folk
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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
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9860294956a103ed80ac84892b368906d0774d43d787c85aaa3d4a9ffbaba6cb. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/UST8K1608664.
      date published: 2026-07-18T04:13:26Z
    audio: Toomsuba
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      additional property: Musical Key
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        value: 5
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      additional property: Danceability
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      additional property: Speechiness
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      additional property: Acousticness
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      additional property: Valence (Positivity)
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      additional property: Loudness (dB)
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      additional property: Key Name
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  track: Itta Bena
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    by artist: Matt Marble
    in album: Twilights
      type: MusicAlbum
      date published: 2016-08-29
    genre: indie folk
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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
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd00a2fc2895e9ca4038d8eab0fcb43e27d64a0548cb9ebce92ce88a88f3a961f. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:17:24Z), 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/UST8K1608668.
      date published: 2026-07-16T14:17:24Z
    audio: Itta Bena
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album: Everyday Mind
album: Akasha
album: Secret Light
album: Mind Chimes
album: Middle of the Air
album: Spoke
album: Conversation With a Wolf
album: Altar Songs EP
album: Subliminal Seraphim
album: Inner Airs
album: Pärispea/Dream
album: Astoria
album: Midnight Litanies
album: Staying Inside
album: Wondering Stars
album: Breath of Elijah
album: Breath of Breonna
album: American Trataka
album: Mauve Zone
album: The Seraphic Mirror
album: Ocean Island Altar Angel
album: The Living Mirror
album: Songs from the Wondering Stars
album: Root Work
album: Turn Songs
album: Arising Eyes

Liveness
type: PropertyValue
value: 0.122

Valence (Positivity)
type: PropertyValue
value: 0.289

Loudness (dB)
type: PropertyValue
value: -12.815

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Major

Everyday Mind
type: MusicAlbum
date published: 2018-01-04

Akasha
type: MusicAlbum
date published: 2018-01-23

Secret Light
type: MusicAlbum
date published: 2018-03-03

Mind Chimes
type: MusicAlbum
date published: 2018-03-09

Middle of the Air
type: MusicAlbum
date published: 2018-03-31

Spoke
type: MusicAlbum
date published: 2018-04-16

Conversation With a Wolf
type: MusicAlbum
date published: 2018-11-21

Altar Songs EP
type: MusicAlbum
date published: 2018-11-30

Subliminal Seraphim
type: MusicAlbum
date published: 2019-08-01

Inner Airs
type: MusicAlbum
date published: 2019-09-16

Pärispea/Dream
type: MusicAlbum
date published: 2019-11-21

Astoria
type: MusicAlbum
date published: 2019-12-12

Midnight Litanies
type: MusicAlbum
date published: 2020-01-10

Staying Inside
type: MusicAlbum
date published: 2020-03-31

Wondering Stars
type: MusicAlbum
date published: 2020-05-05

Breath of Elijah
type: MusicAlbum
date published: 2020-07-25

Breath of Breonna
type: MusicAlbum
date published: 2020-09-02

American Trataka
type: MusicAlbum
date published: 2020-09-10

Mauve Zone
type: MusicAlbum
date published: 2020-09-13

The Seraphic Mirror
type: MusicAlbum
date published: 2020-10-02

Ocean Island Altar Angel
type: MusicAlbum
date published: 2021-07-23

The Living Mirror
type: MusicAlbum
date published: 2021-12-02

Songs from the Wondering Stars
type: MusicAlbum
date published: 2022-07-14

Root Work
type: MusicAlbum
date published: 2024-02-24

Turn Songs
type: MusicAlbum
date published: 2024-03-01

Arising Eyes
type: MusicAlbum
date published: 2024-11-30