Colin Jacobsen
type: MusicGroup
genre: chamber music
popularity: 12
followers: 313
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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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  date published: 2026-06-15T04:44:49Z
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album: Colin Jacobsen: Kreutzings
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  date published: 2022-08-12
track: Red & White & Blue & Gold - Live From 18th Street Studios
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  by artist: Aoife O'Donovan
  by artist: Eric Jacobsen
  by artist: Colin Jacobsen
  in album: Red & White & Blue & Gold
    type: MusicAlbum
    date published: 2020-07-03
  genre: folk
  genre: ectofolk
  genre: indie-folk
  genre: new-americana
  genre: boston-folk
  genre: progressive-bluegrass
  isrc code: USY1R2076001
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  additional property: OTSVerificationAPI
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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 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
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x040b02e644ea760d49c82363e0cd770e2b3b76c917dd2f0ed586d1cf50f15a13. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USY1R2076001 — a six-check JSON result.
    date published: 2026-07-29T21:09:47Z
  audio: Red & White & Blue & Gold - Live From 18th Street Studios
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track: Suite from "Le nozze di Figaro", K. 492 (Arr. for String Quartet by Jan Vogler): No. 7 Andante con moto: "Sagt, holde Frauen, die ihr sie kennt"
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  by artist: Wolfgang Amadeus Mozart
  by artist: Jan Vogler
  by artist: Colin Jacobsen
  by artist: Mira Wang
  by artist: Tatjana Masurenko
  in album: Mozart: Divertimento in ES-Dur KV 563/Figaro Suite
    type: MusicAlbum
    date published: 2006-01-12
  genre: classical
  genre: classical-era
  genre: classical-piano
  genre: opera
  genre: chamber-music
  genre: concerto
  isrc code: DEE860500805
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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 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 0x993891d9822bd6dab9c8eee98cb9413aa8c8c3f959d28202c8c34d98f37485d0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEE860500805 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Suite from "Le nozze di Figaro", K. 492 (Arr. for String Quartet by Jan Vogler): No. 7 Andante con moto: "Sagt, holde Frauen, die ihr sie kennt"
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    additional property: Tempo (BPM)
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track: Atashgah
track: For Sixty Cents

Energy
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Instrumentalness
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Liveness
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Valence (Positivity)
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Loudness (dB)
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Key Name
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value: Bb

Mode Name
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Atashgah
type: MusicRecording
duration: PT14M0S
duration ms: 840786
explicit: false
by artist: Colin Jacobsen
by artist: Yo-Yo Ma
by artist: Silkroad Ensemble
in album: A Playlist Without Borders
  type: MusicAlbum
  date published: 2013-09-20
isrc code: USSM11303614
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additional property: CopyrightStatus
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additional property: OTSVerificationAPI
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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 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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb728b6bebf763512f0ef55d778ea596b9d1f1069400942f6600677fedd4b0570. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/USSM11303614 — a six-check JSON result.
  date published: 2026-07-29T11:30:20Z
audio: Atashgah
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For Sixty Cents
type: MusicRecording
duration: PT4M41S
duration ms: 281973
explicit: false
by artist: Colin Jacobsen
by artist: Anne Sofie von Otter
by artist: Brooklyn Rider
in album: So Many Things (Arr. for Mezzo-Soprano and String Quartet)
  type: MusicAlbum
  date published: 2016-09-30
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additional property: OTSBitcoinBlock
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additional property: OTSVerificationAPI
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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 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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b72ffb1bc330d817299f74303b84964245a31df8a158baad98ea428ea48c4a. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/FRZ131602040 — a six-check JSON result.
  date published: 2026-07-31T06:42:11Z
audio: For Sixty Cents
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