Douglas Purviance
type: MusicGroup
description: thumb|(l-r) Andy McKee, Douglas Purviance, Luis Bonilla, and Michael Marchione listening to playback at Systems II Recording Studio in Brooklyn NY on April 4th, 2014 for Mists: Charles Ives for Jazz O
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followers: 25
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track: Sax Chase
track: Ray's Vision At The U
track: Lomelin
track: Love For Sale
track: Jeri
track: Dorian
track: Blues For Manhattan
track: A.E.N.
track: Musette
track: So What

Sax Chase
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by artist: Benny Powell
by artist: Dennis Wilson
by artist: Douglas Purviance
by artist: Eddie Henderson
by artist: Frank Greene
by artist: Jeremy Pelt
by artist: Jerry Dodgion
by artist: Jimmy Owens
by artist: Jon Faddis
by artist: Lewis Nash
by artist: Luis Bonilla
by artist: Peter Washington
by artist: Renee Rosnes
by artist: Russell Malone
in album: In My Time
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  date published: 2026-07-02T03:30:09Z
audio: Sax Chase
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Ray's Vision At The U
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by artist: Dennis Wilson
by artist: Luis Bonilla
by artist: Ron Blake
by artist: Russell Malone
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by artist: Eddie Henderson
by artist: Frank Greene
by artist: Gary Smulyan
by artist: Jerry Dodgion
by artist: Jimmy Owens
by artist: Kamasi Washington
by artist: Lewis Nash
by artist: Peter Washington
by artist: Renee Rosnes
by artist: Steve Wilson
by artist: Jon Faddis
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  date published: 2026-07-02T05:09:12Z
audio: Ray's Vision At The U
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Lomelin
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by artist: Benny Powell
by artist: Dennis Wilson
by artist: Douglas Purviance
by artist: Eddie Henderson
by artist: Frank Greene
by artist: Gary Smulyan
by artist: Jerry Dodgion
by artist: Jimmy Owens
by artist: Kamasi Washington
by artist: Lewis Nash
by artist: Luis Bonilla
by artist: Peter Washington
by artist: Renee Rosnes
by artist: Russell Malone
by artist: Sean Jones
by artist: Steve Wilson
in album: In My Time
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isrc code: USMAC0502405
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  date published: 2026-07-08T03:53:27Z
audio: Lomelin
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Love For Sale
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duration: PT5M5S
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by artist: Eddie Henderson
by artist: Frank Greene
by artist: Gary Smulyan
by artist: Jerry Dodgion
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by artist: Kamasi Washington
by artist: Lewis Nash
by artist: Luis Bonilla
by artist: Peter Washington
by artist: Russell Malone
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  date published: 2026-07-08T03:53:27Z
audio: Love For Sale
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Jeri
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Dorian
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by artist: Jerry Dodgion
by artist: Jimmy Owens
by artist: Lewis Nash
by artist: Luis Bonilla
by artist: Peter Washington
by artist: Ron Blake
by artist: Russell Malone
by artist: Steve Wilson
by artist: Jon Faddis
in album: In My Time
  type: MusicAlbum
  date published: 2005-09-27
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a9307203d2f807dbd4576dfd400bbc12692c74be83aa58632e39e32c92147ea. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/USMAC0502402.
  date published: 2026-07-30T00:16:15Z
audio: Dorian
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 132.076
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.489
  additional property: Energy
    type: PropertyValue
    value: 0.678
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.497
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.18
  additional property: Liveness
    type: PropertyValue
    value: 0.069
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.306
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.262
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: USMAC0502402
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960175
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T00:16:15+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USMAC0502402
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960175
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960175
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T00:16:15+00:00
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

Blues For Manhattan
type: MusicRecording
duration: PT8M47S
duration ms: 527813
explicit: false
by artist: Dustin Cicero
by artist: Renee Rosnes
by artist: Sean Jones
by artist: Kamasi Washington
by artist: Benny Powell
by artist: Dennis Wilson
by artist: Douglas Purviance
by artist: Eddie Henderson
by artist: Frank Greene
by artist: Gary Smulyan
by artist: Jerry Dodgion
by artist: Jimmy Owens
by artist: Jon Faddis
by artist: Lewis Nash
by artist: Luis Bonilla
by artist: Peter Washington
by artist: Ron Blake
by artist: Russell Malone
by artist: Steve Wilson
in album: In My Time
  type: MusicAlbum
  date published: 2005-09-27
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9d965f75c387d9a77f51ba447c8af93bd63be40483d6f616d77098be7d70933. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USMAC0502404.
  date published: 2026-07-30T17:23:26Z
audio: Blues For Manhattan
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 191.188
  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: 0.422
  additional property: Energy
    type: PropertyValue
    value: 0.59
  additional property: Speechiness
    type: PropertyValue
    value: 0.053
  additional property: Acousticness
    type: PropertyValue
    value: 0.457
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.002
  additional property: Liveness
    type: PropertyValue
    value: 0.071
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.518
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.455
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: USMAC0502404
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960284
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T17:23:26+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USMAC0502404
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960284
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960284
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T17:23:26+00:00
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

A.E.N.
type: MusicRecording
duration: PT10M26S
duration ms: 626253
explicit: false
by artist: Dustin Cicero
by artist: Renee Rosnes
by artist: Kamasi Washington
by artist: Jimmy Owens
by artist: Steve Wilson
by artist: Russell Malone
by artist: Jeremy Pelt
by artist: Benny Powell
by artist: Dennis Wilson
by artist: Douglas Purviance
by artist: Frank Greene
by artist: Gary Smulyan
by artist: Jerry Dodgion
by artist: Jon Faddis
by artist: Lewis Nash
by artist: Luis Bonilla
by artist: Mike Rodriguez
by artist: Peter Washington
by artist: Ron Blake
in album: In My Time
  type: MusicAlbum
  date published: 2005-09-27
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d72fbb021c5d9e57eca1d4e54f508ceb42fc2ed1d67c1f2ab6892ce327262ba. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USMAC0502406.
  date published: 2026-07-31T08:26:41Z
audio: A.E.N.
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 137.391
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.469
  additional property: Energy
    type: PropertyValue
    value: 0.672
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.701
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.116
  additional property: Liveness
    type: PropertyValue
    value: 0.167
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.531
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.116
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: USMAC0502406
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960368
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T08:26:41+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USMAC0502406
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960368
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960368
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T08:26:41+00:00
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

Musette
type: MusicRecording
duration: PT5M48S
duration ms: 348653
explicit: false
by artist: Dustin Cicero
by artist: Russell Malone
by artist: Benny Powell
by artist: Dennis Wilson
by artist: Douglas Purviance
by artist: Frank Greene
by artist: Gary Smulyan
by artist: Jeremy Pelt
by artist: Jerry Dodgion
by artist: Jimmy Owens
by artist: Jon Faddis
by artist: Kamasi Washington
by artist: Lewis Nash
by artist: Luis Bonilla
by artist: Mike Rodriguez
by artist: Peter Washington
by artist: Renee Rosnes
by artist: Ron Blake
by artist: Steve Wilson
in album: In My Time
  type: MusicAlbum
  date published: 2005-09-27
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce223a8e0a2a3ea11f4f2f63eb51c008dc882a13c3a1af88658d3f03a5d26248. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USMAC0502407.
  date published: 2026-07-31T12:24:41Z
audio: Musette
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 122.378
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.446
  additional property: Energy
    type: PropertyValue
    value: 0.32
  additional property: Speechiness
    type: PropertyValue
    value: 0.033
  additional property: Acousticness
    type: PropertyValue
    value: 0.988
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.889
  additional property: Liveness
    type: PropertyValue
    value: 0.143
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.279
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.608
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: USMAC0502407
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960397
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T12:24:41+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USMAC0502407
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960397
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960397
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T12:24:41+00:00
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

So What
type: MusicRecording
duration: PT11M9S
duration ms: 669306
explicit: false
by artist: Dustin Cicero
by artist: Jimmy Owens
by artist: Kamasi Washington
by artist: Luis Bonilla
by artist: Russell Malone
by artist: Renee Rosnes
by artist: Peter Washington
by artist: Benny Powell
by artist: Dennis Wilson
by artist: Douglas Purviance
by artist: Eddie Henderson
by artist: Frank Greene
by artist: Gary Smulyan
by artist: Jerry Dodgion
by artist: Jon Faddis
by artist: Lewis Nash
by artist: Ron Blake
by artist: Sean Jones
by artist: Steve Wilson
in album: In My Time
  type: MusicAlbum
  date published: 2005-09-27
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d0bcacd26428eb9844802a4400792bd7efa6406926a0b93b867d6053bdc87c. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/USMAC0502408.
  date published: 2026-07-30T01:32:48Z
audio: So What
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 137.007
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.523
  additional property: Energy
    type: PropertyValue
    value: 0.54
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.772
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.177
  additional property: Liveness
    type: PropertyValue
    value: 0.08
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.457
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.504
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: USMAC0502408
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960185
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T01:32:48+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USMAC0502408
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960185
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960185
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T01:32:48+00:00
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