David Grubbs
type: MusicGroup
genre: avant-garde
genre: experimental
genre: post-rock
genre: slowcore
description: thumb|David Grubbs live in 1985 with Squirrel Bait David Grubbs (born September 21, 1967) is an American composer, guitarist, pianist, and vocalist. He was a founding member of Squirrel Bait, Bastro,
popularity: 22
followers: 7580
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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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album: The Thicket
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  date published: 1998
album: The Thicket
  type: MusicAlbum
  date published: 1998
album: The Spectrum Between
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  date published: 2000-07-31
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      date published: 2000-07-31
    genre: avant-garde
    genre: experimental
    genre: post-rock
    genre: slowcore
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-04T10:04:33Z
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    genre: avant-garde
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    subject of: OpenTimestamps Proof of Existence
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album: Thirty Minute Raven
album: Rickets & Scurvy
album: Act Five, Scene One
album: Split #16
album: Split Series #16
album: Igevär/Yellow Sky
album: Guess At The Riddle
album: A Guess At the Riddle
album: A Guess at the Riddle
album: A Guess At The Riddle
album: The Harmless Dust
album: Souls of the Labadie Tract
album: An Optimist Notes The Dusk
album: Hybrid Song Box.4
album: Frolic Architecture
album: The Coxcomb
album: Aux Noctambules
album: Borough of Broken Umbrellas
album: The Plain Where The Palace Stood
album: Prismrose
album: Creep Mission
album: Failed Celestial Creatures
album: Translation from Unspecified (Excerpt)
album: Translation from Unspecified
album: na margem sul
album: Psalms
album: Your Music Encountered in a Dream
album: Evening Air
album: The Snake on Its Tail
album: Queen's Side Eye
album: Whistle from Above
track: The Night of Santiago (feat. David Grubbs)

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Instrumentalness
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Valence (Positivity)
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Loudness (dB)
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Key Name
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The Spectrum Between
type: MusicAlbum
date published: 2000-07-31

Thirty Minute Raven
type: MusicAlbum
date published: 2001

Rickets & Scurvy
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date published: 2002

Rickets & Scurvy
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date published: 2002

Rickets & Scurvy
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date published: 2002

Rickets & Scurvy
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date published: 2002

Rickets & Scurvy
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date published: 2002
track: Crevasse
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  by artist: David Grubbs
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    type: MusicAlbum
    date published: 2002
  genre: avant-garde
  genre: experimental
  genre: post-rock
  genre: slowcore
  isrc code: US58L0522409
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-05T10:01:46Z
  audio: Crevasse
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Act Five, Scene One
type: MusicAlbum
date published: 2002-02-02

Split #16
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date published: 2003

Split Series #16
type: MusicAlbum
date published: 2004

Igevär/Yellow Sky
type: MusicAlbum
date published: 2004-06-01

Guess At The Riddle
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A Guess At the Riddle
type: MusicAlbum
date published: 2004-06-07

A Guess at the Riddle
type: MusicAlbum
date published: 2004-06-07

A Guess At the Riddle
type: MusicAlbum
date published: 2004-06-07

A Guess At The Riddle
type: MusicAlbum
date published: 2004-06-23

A Guess At The Riddle
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date published: 2004-06-23

The Harmless Dust
type: MusicAlbum
date published: 2005-02-09

Souls of the Labadie Tract
type: MusicAlbum
date published: 2008

Souls of the Labadie Tract
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date published: 2008

An Optimist Notes The Dusk
type: MusicAlbum
date published: 2008-09-23

An Optimist Notes The Dusk
type: MusicAlbum
date published: 2008-09-23

Hybrid Song Box.4
type: MusicAlbum
date published: 2009

Hybrid Song Box.4
type: MusicAlbum
date published: 2009

Frolic Architecture
type: MusicAlbum
date published: 2011

Frolic Architecture
type: MusicAlbum
date published: 2011

The Coxcomb
type: MusicAlbum
date published: 2011-08-02

Aux Noctambules
type: MusicAlbum
date published: 2011-08-03

Borough of Broken Umbrellas
type: MusicAlbum
date published: 2013

The Plain Where The Palace Stood
type: MusicAlbum
date published: 2013-04-16

The Plain Where The Palace Stood
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date published: 2013-04-16

Prismrose
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date published: 2016

Prismrose
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date published: 2016

Creep Mission
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date published: 2018-04-01

Creep Mission
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date published: 2018-04-01
track: The C In Certain
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  genre: avant-garde
  genre: experimental
  genre: post-rock
  genre: slowcore
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-17T19:12:23Z
  audio: The C In Certain
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Failed Celestial Creatures
type: MusicAlbum
date published: 2018-05-11

Translation from Unspecified (Excerpt)
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Translation from Unspecified
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na margem sul
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date published: 2022-09-09

Psalms
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date published: 2023-04-07

Your Music Encountered in a Dream
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date published: 2024-02-23

Evening Air
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date published: 2024-08-23

The Snake on Its Tail
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date published: 2024-12-03

Queen's Side Eye
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date published: 2025-02-04
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    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1ecc7ea6a876a45c66bc7aea7865b64e8e432fe7f0fe7f464bf77fe7153cdf. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/US58L2594107.
    date published: 2026-07-19T14:09:34Z
  audio: Queen's Side Eye
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 140.453
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 1
    additional property: Danceability
      type: PropertyValue
      value: 0.292
    additional property: Energy
      type: PropertyValue
      value: 0.248
    additional property: Speechiness
      type: PropertyValue
      value: 0.034
    additional property: Acousticness
      type: PropertyValue
      value: 0.961
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.913
    additional property: Liveness
      type: PropertyValue
      value: 0.109
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.036
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.65
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major

Whistle from Above
type: MusicAlbum
date published: 2025-02-28
track: The Snake on Its Tail
  type: MusicRecording
  duration: PT5M20S
  duration ms: 320000
  explicit: false
  by artist: David Grubbs
  in album: Whistle from Above
    type: MusicAlbum
    date published: 2025-02-28
  genre: avant-garde
  genre: experimental
  genre: post-rock
  genre: slowcore
  isrc code: US58L2594102
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-13T17:21:55+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xdc2dd5347224956031b227fd08a33cb18d676c9a6347bcb24fff328106c48777
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957891
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957891
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US58L2594102
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-13T18:21:04Z
  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 0xdc2dd5347224956031b227fd08a33cb18d676c9a6347bcb24fff328106c48777. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/US58L2594102.
    date published: 2026-07-13T18:21:04Z
  audio: The Snake on Its Tail
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 76.89
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.195
    additional property: Energy
      type: PropertyValue
      value: 0.412
    additional property: Speechiness
      type: PropertyValue
      value: 0.044
    additional property: Acousticness
      type: PropertyValue
      value: 0.932
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.913
    additional property: Liveness
      type: PropertyValue
      value: 0.082
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.116
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.748
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Hung in the Sky of the Mind
  type: MusicRecording
  duration: PT7M16S
  duration ms: 436000
  explicit: false
  by artist: David Grubbs
  in album: Whistle from Above
    type: MusicAlbum
    date published: 2025-02-28
  genre: avant-garde
  genre: experimental
  genre: post-rock
  genre: slowcore
  isrc code: US58L2594103
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T03:18:08+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x77c89f86ac95a817401dc2391e8adee0847a737a76f7f3eb54882b0561c632d8
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956474
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956474
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US58L2594103
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T08:56:35Z
  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 0x77c89f86ac95a817401dc2391e8adee0847a737a76f7f3eb54882b0561c632d8. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/US58L2594103.
    date published: 2026-07-03T08:56:35Z
  audio: Hung in the Sky of the Mind
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 74.716
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.303
    additional property: Energy
      type: PropertyValue
      value: 0.094
    additional property: Speechiness
      type: PropertyValue
      value: 0.06
    additional property: Acousticness
      type: PropertyValue
      value: 0.967
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.849
    additional property: Liveness
      type: PropertyValue
      value: 0.125
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.039
    additional property: Loudness (dB)
      type: PropertyValue
      value: -23.36
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Poem Arrives Distorted
  type: MusicRecording
  duration: PT4M38S
  duration ms: 278000
  explicit: false
  by artist: David Grubbs
  in album: Whistle from Above
    type: MusicAlbum
    date published: 2025-02-28
  genre: avant-garde
  genre: experimental
  genre: post-rock
  genre: slowcore
  isrc code: US58L2594105
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T08:31:34+00:00
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Poem Arrives Distorted
track: Later in the Tapestry Room
track: Queen's Side Eye
track: Synchro Fade Pluck Stutter Slip

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xdbbf3e99416f6f3c65e9b3d8422671382357e86c3d735e0ff58ec668fe8642e0

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 958134

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/958134

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US58L2594105

OTSTimestamp
type: PropertyValue
value: 2026-07-15T09:14:08Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbbf3e99416f6f3c65e9b3d8422671382357e86c3d735e0ff58ec668fe8642e0. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/US58L2594105.
date published: 2026-07-15T09:14:08Z

Poem Arrives Distorted
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 136.451
additional property: Musical Key
  type: PropertyValue
  value: 2
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 3
additional property: Danceability
  type: PropertyValue
  value: 0.265
additional property: Energy
  type: PropertyValue
  value: 0.156
additional property: Speechiness
  type: PropertyValue
  value: 0.036
additional property: Acousticness
  type: PropertyValue
  value: 0.985
additional property: Instrumentalness
  type: PropertyValue
  value: 0.738
additional property: Liveness
  type: PropertyValue
  value: 0.108
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.029
additional property: Loudness (dB)
  type: PropertyValue
  value: -18.03
additional property: Key Name
  type: PropertyValue
  value: D
additional property: Mode Name
  type: PropertyValue
  value: Major

Later in the Tapestry Room
type: MusicRecording
duration: PT3M44S
duration ms: 224000
explicit: false
by artist: David Grubbs
in album: Whistle from Above
  type: MusicAlbum
  date published: 2025-02-28
genre: avant-garde
genre: experimental
genre: post-rock
genre: slowcore
isrc code: US58L2594106
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-03T16:45:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfe7b14f9525527054fe95b0415142cc80fedfff8b22dfc06f64379666cb4cf41
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956545
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956545
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US58L2594106
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-03T19:59:51Z
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 0xfe7b14f9525527054fe95b0415142cc80fedfff8b22dfc06f64379666cb4cf41. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/US58L2594106.
  date published: 2026-07-03T19:59:51Z
audio: Later in the Tapestry Room
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 56.321
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.157
  additional property: Energy
    type: PropertyValue
    value: 0.46
  additional property: Speechiness
    type: PropertyValue
    value: 0.094
  additional property: Acousticness
    type: PropertyValue
    value: 0.297
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.007
  additional property: Liveness
    type: PropertyValue
    value: 0.309
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.064
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.723
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Queen's Side Eye
type: MusicRecording
duration: PT5M20S
duration ms: 320000
explicit: false
by artist: David Grubbs
in album: Whistle from Above
  type: MusicAlbum
  date published: 2025-02-28
genre: avant-garde
genre: experimental
genre: post-rock
genre: slowcore
isrc code: US58L2594107
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-17T15:11:37+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5c1ecc7ea6a876a45c66bc7aea7865b64e8e432fe7f0fe7f464bf77fe7153cdf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958430
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958430
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US58L2594107
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-17T15:33:28Z
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 0x5c1ecc7ea6a876a45c66bc7aea7865b64e8e432fe7f0fe7f464bf77fe7153cdf. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/US58L2594107.
  date published: 2026-07-17T15:33:28Z
audio: Queen's Side Eye
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 140.453
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 1
  additional property: Danceability
    type: PropertyValue
    value: 0.292
  additional property: Energy
    type: PropertyValue
    value: 0.248
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.961
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.913
  additional property: Liveness
    type: PropertyValue
    value: 0.109
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.036
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.65
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Synchro Fade Pluck Stutter Slip
type: MusicRecording
duration: PT6M5S
duration ms: 365000
explicit: false
by artist: David Grubbs
in album: Whistle from Above
  type: MusicAlbum
  date published: 2025-02-28
genre: avant-garde
genre: experimental
genre: post-rock
genre: slowcore
isrc code: US58L2594108
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-04T12:47:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3eef3c0ca115bb5de98d50566e6cf5865304b15424bbd3c3ecba907610f2e698
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956725
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956725
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US58L2594108
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T01:12:41Z
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 0x3eef3c0ca115bb5de98d50566e6cf5865304b15424bbd3c3ecba907610f2e698. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/US58L2594108.
  date published: 2026-07-05T01:12:41Z
audio: Synchro Fade Pluck Stutter Slip
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 138.708
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.146
  additional property: Energy
    type: PropertyValue
    value: 0.421
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.923
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.869
  additional property: Liveness
    type: PropertyValue
    value: 0.102
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.037
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.066
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Minor

The Night of Santiago (feat. David Grubbs)
type: MusicRecording
duration: PT4M16S
duration ms: 256333
explicit: false
by artist: Bill Callahan
by artist: Bonnie Prince Billy
by artist: David Grubbs
in album: Blind Date Party
  type: MusicAlbum
  date published: 2021-12-10
isrc code: US58L2080316
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T17:29:54+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbb7ae22a7e736034d14b1af04f4e38bb08523be51bb2145281dfe95826d83abd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US58L2080316
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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 0xbb7ae22a7e736034d14b1af04f4e38bb08523be51bb2145281dfe95826d83abd. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/US58L2080316.
  date published: 2026-07-02T03:55:08Z
audio: The Night of Santiago (feat. David Grubbs)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 100.704
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.414
  additional property: Energy
    type: PropertyValue
    value: 0.26
  additional property: Speechiness
    type: PropertyValue
    value: 0.057
  additional property: Acousticness
    type: PropertyValue
    value: 0.703
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.104
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.211
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.216
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major