Darius Koski
type: MusicGroup
genre: folk punk
genre: newgrass
genre: roots rock
popularity: 4
followers: 995
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSProofURL
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e0d85e3928c11d5c4a7249eb4e55a66c4045a9857aec8fe2cb118ac57f8e1e. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b144c552-7177-4651-8aec-8aace7302f54.json and https://artists.proofprofile.net/proofs/artist/b144c552-7177-4651-8aec-8aace7302f54.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
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album: Sisu
  type: MusicAlbum
  date published: 2015-04-07
album: Sisu
  type: MusicAlbum
  date published: 2015-04-07
album: Sisu
  type: MusicAlbum
  date published: 2015-04-14
album: Because He's Beautiful
  type: MusicAlbum
  date published: 2017-09-29
album: Because He's Beautiful
  type: MusicAlbum
  date published: 2017-09-29
album: Black Sheep
  type: MusicAlbum
  date published: 2017-10-20
album: Black Sheep
  type: MusicAlbum
  date published: 2017-10-20
album: What Was Once is by and Gone
  type: MusicAlbum
  date published: 2017-11-03
album: What Was Once is by and Gone
  type: MusicAlbum
  date published: 2017-11-03
album: Off with Their Heads
  type: MusicAlbum
  date published: 2021-09-17
album: Off with Their Heads
  type: MusicAlbum
  date published: 2021-09-17
track: Fond of, Lost To

Fond of, Lost To
type: MusicRecording
duration: PT2M29S
duration ms: 149853
explicit: false
by artist: Darius Koski
in album: Fat Music Vol. 8: Going Nowhere Fat
  type: MusicAlbum
  date published: 2015-08-07
isrc code: USFW41594915
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFW41594915
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T11:43:09Z
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
  type: PropertyValue
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x004d1c21eb25e75c99201591029c176f8f467561eca348cce12137a9b4d1d2df. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/USFW41594915.
  date published: 2026-07-07T11:43:09Z
audio: Fond of, Lost To
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 133.645
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.033
  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: 0.675
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.333
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major