David Hickman
type: MusicGroup
genre: classical-trumpet
description: David Hickman may refer to: David Hickman (musician), trumpet player, past president of International Trumpet Guild David Henry Hickman (1821–1869), legislator and businessman from Columbia, Missouri
popularity: 8
followers: 813
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSProofURL
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  value: https://artists.proofprofile.net/proofs/artist/453fabd1-f96b-48ad-86bb-55f9f6815cdd.ots
additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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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 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: 2026-06-17T06:34:31Z
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album: A Summer Brass Night: Live in Colorado
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  date published: 2008-03-11
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    by artist: Summit Brass
    in album: A Summer Brass Night: Live in Colorado
      type: MusicAlbum
      date published: 2008-03-11
    popularity: 2
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    additional property: OTSVerificationAPI
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      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US9930810068
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-08T03:20:19Z
    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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      date published: 2026-07-08T03:20:19Z
    audio: Capriol Suite: Basse - Danse
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  track: Capriol Suite: Tordion
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    by artist: Peter Warlock
    by artist: Summit Brass
    in album: A Summer Brass Night: Live in Colorado
      type: MusicAlbum
      date published: 2008-03-11
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    additional property: CopyrightStatus
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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
      encoding format: application/vnd.opentimestamps.ots
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      date published: 2026-07-29T12:41:21Z
    audio: Capriol Suite: Tordion
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  track: Capriol Suite: Bransies
  track: Capriol Suite: Pieds-en-l'air
album: Golden Age of Brass: vol. 1
album: A Celebration of Rafael Méndez - Trumpet Fiesta
album: Masterclass Series - Baroque Trumpet Repertoire
album: Masterclass Series - Classical Trumpet
album: Three Trumpet Concertos
album: Hope's Journey: The Music of Michael Conway Baker
album: Golden Age of Brass: vol. 2
album: Saint-Saens Chamber Music
album: In Concert with The University of Illinois Symphonic Band - The Begian Years, Vol. XVI
album: Collaboration

Valence (Positivity)
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Loudness (dB)
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value: -25.717

Key Name
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Mode Name
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Capriol Suite: Bransies
type: MusicRecording
duration: PT2M5S
duration ms: 125200
explicit: false
by artist: Peter Warlock
by artist: Summit Brass
in album: A Summer Brass Night: Live in Colorado
  type: MusicAlbum
  date published: 2008-03-11
isrc code: US9930810071
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additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
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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 0xa6186485dd2c1f2848efe22a98b85e64a18f801e2cf827df924ffcb8b997970c. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US9930810071.
  date published: 2026-07-08T03:20:19Z
audio: Capriol Suite: Bransies
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  additional property: Mode (Major/Minor)
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    type: PropertyValue
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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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Capriol Suite: Pieds-en-l'air
type: MusicRecording
duration: PT2M7S
duration ms: 127333
explicit: false
by artist: Peter Warlock
by artist: Summit Brass
in album: A Summer Brass Night: Live in Colorado
  type: MusicAlbum
  date published: 2008-03-11
popularity: 5
isrc code: US9930810072
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
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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
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  date published: 2026-07-29T21:09:47Z
audio: Capriol Suite: Pieds-en-l'air
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Energy
    type: PropertyValue
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    type: PropertyValue
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  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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Golden Age of Brass: vol. 1
type: MusicAlbum
date published: 1990
track: Miserere (from Il Trovatore)
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  duration: PT2M48S
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  by artist: Giuseppe Verdi
  by artist: David Hickman
  by artist: Mark Lawrence, baritone
  by artist: Mark Lawrence
  by artist: Henry Charles Smith
  in album: Golden Age of Brass: vol. 1
    type: MusicAlbum
    date published: 1990
  popularity: 10
  genre: classical
  genre: opera
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  additional property: CopyrightID
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  additional property: OTSVerificationAPI
    type: PropertyValue
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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
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc92fb6b17e810b25a49e9ac3c2c91f2d4a1a1dd582768c5309887cad9b8ead0e. 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/US9930511839.
    date published: 2026-07-02T03:55:08Z
  audio: Miserere (from Il Trovatore)
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track: Cousins
  type: MusicRecording
  duration: PT4M10S
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  by artist: Herbert L. Clarke
  by artist: David Hickman
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  by artist: Henry Charles Smith
  in album: Golden Age of Brass: vol. 1
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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 0xedc8a82a696626ed8bbb94614ff776ce5aca7cafd7d869a7760b64222edecada. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US9930511842.
    date published: 2026-07-08T03:20:19Z
  audio: Cousins
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 105.311
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.506
    additional property: Energy
      type: PropertyValue
      value: 0.177
    additional property: Speechiness
      type: PropertyValue
      value: 0.097
    additional property: Acousticness
      type: PropertyValue
      value: 0.992
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.892
    additional property: Liveness
      type: PropertyValue
      value: 0.068
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.265
    additional property: Loudness (dB)
      type: PropertyValue
      value: -24.437
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Danse Napolitaine (from Swan Lake)
  type: MusicRecording
  duration: PT2M15S
  duration ms: 135333
  explicit: false
  by artist: Pyotr Ilyich Tchaikovsky
  by artist: David Hickman
  by artist: Mark Lawrence
  by artist: Henry Charles Smith
  in album: Golden Age of Brass: vol. 1
    type: MusicAlbum
    date published: 1990
  popularity: 7
  isrc code: US9930511845
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  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: Danse Napolitaine (from Swan Lake)
track: Carnival of Venice

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-06T11:06:55+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x56699f8f23b88db155704df12cb2f00ff1af1ca1bcccd8dc993091d8d5ad1dbf

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957064

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957064

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US9930511845

OTSTimestamp
type: PropertyValue
value: 2026-07-07T16:43:08Z

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 0x56699f8f23b88db155704df12cb2f00ff1af1ca1bcccd8dc993091d8d5ad1dbf. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/US9930511845.
date published: 2026-07-07T16:43:08Z

Danse Napolitaine (from Swan Lake)
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 118.118
additional property: Musical Key
  type: PropertyValue
  value: 3
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.668
additional property: Energy
  type: PropertyValue
  value: 0.155
additional property: Speechiness
  type: PropertyValue
  value: 0.201
additional property: Acousticness
  type: PropertyValue
  value: 0.992
additional property: Instrumentalness
  type: PropertyValue
  value: 0.89
additional property: Liveness
  type: PropertyValue
  value: 0.069
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.747
additional property: Loudness (dB)
  type: PropertyValue
  value: -24.51
additional property: Key Name
  type: PropertyValue
  value: Eb
additional property: Mode Name
  type: PropertyValue
  value: Major

Carnival of Venice
type: MusicRecording
duration: PT3M1S
duration ms: 181000
explicit: false
by artist: Herbert L. Clarke
by artist: David Hickman
by artist: Mark Lawrence
by artist: Henry Charles Smith
in album: Golden Age of Brass: vol. 1
  type: MusicAlbum
  date published: 1990
popularity: 3
isrc code: US9930511847
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T22:21:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x04b68f6bab9eb4c21160864eb33ff548db6c6329688bbabdb848a44cc6ed665d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US9930511847
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
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 0x04b68f6bab9eb4c21160864eb33ff548db6c6329688bbabdb848a44cc6ed665d. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US9930511847.
  date published: 2026-07-08T03:20:19Z
audio: Carnival of Venice
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 117.204
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.475
  additional property: Energy
    type: PropertyValue
    value: 0.135
  additional property: Speechiness
    type: PropertyValue
    value: 0.053
  additional property: Acousticness
    type: PropertyValue
    value: 0.992
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.91
  additional property: Liveness
    type: PropertyValue
    value: 0.171
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.611
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.361
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

A Celebration of Rafael Méndez - Trumpet Fiesta
type: MusicAlbum
date published: 2012-02-16
track: Jota No. 2
  type: MusicRecording
  duration: PT3M47S
  duration ms: 227600
  explicit: false
  by artist: David Hickman
  by artist: Miriam Hickman
  by artist: Rafael Méndez
  in album: A Celebration of Rafael Méndez - Trumpet Fiesta
    type: MusicAlbum
    date published: 2012-02-16
  genre: classical-trumpet
  isrc code: US9931200069
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T10:21:41+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9ce2124920d6b161bf315c3ff794d5c5562c3dfc0a3fb704ec1ab3af67fa1137
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US9931200069
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  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 0x9ce2124920d6b161bf315c3ff794d5c5562c3dfc0a3fb704ec1ab3af67fa1137. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US9931200069.
    date published: 2026-07-08T03:20:19Z
  audio: Jota No. 2
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 137.587
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.509
    additional property: Energy
      type: PropertyValue
      value: 0.314
    additional property: Speechiness
      type: PropertyValue
      value: 0.042
    additional property: Acousticness
      type: PropertyValue
      value: 0.978
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.887
    additional property: Liveness
      type: PropertyValue
      value: 0.125
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.586
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.78
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Tico-Tico
  type: MusicRecording
  duration: PT3M58S
  duration ms: 238493
  explicit: false
  by artist: David Hickman
  by artist: Rafael Méndez
  by artist: Arturo Sandoval
  by artist: Miriam Hickman
  in album: A Celebration of Rafael Méndez - Trumpet Fiesta
    type: MusicAlbum
    date published: 2012-02-16
  genre: classical-trumpet
  isrc code: US9931200070
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T22:50:46+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x1ee9ac7a5002bcea899348c990b4652b020276d831f247a58697be9e943d2ee0
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960478
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960478
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US9931200070
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T23:30:38Z
  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 0x1ee9ac7a5002bcea899348c990b4652b020276d831f247a58697be9e943d2ee0. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/US9931200070.
    date published: 2026-07-31T23:30:38Z
  audio: Tico-Tico
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 122.675
    additional property: Musical Key
      type: PropertyValue
      value: 9
    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: 0.321
    additional property: Speechiness
      type: PropertyValue
      value: 0.045
    additional property: Acousticness
      type: PropertyValue
      value: 0.963
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.908
    additional property: Liveness
      type: PropertyValue
      value: 0.073
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.457
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.786
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Por la España Cañi
  type: MusicRecording
  duration: PT2M47S
  duration ms: 167533
  explicit: false
  by artist: David Hickman
  by artist: Jens Lindemann
  by artist: Miriam Hickman
  by artist: Rafael Méndez
  by artist: Arturo Sandoval
  by artist: Robert Karon
  in album: A Celebration of Rafael Méndez - Trumpet Fiesta
    type: MusicAlbum
    date published: 2012-02-16
  genre: classical-trumpet
  isrc code: US9931200071
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T19:30:13+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: Por la España Cañi
track: The Tre-Méndez Polka
track: Zandunga
track: La Virgen de la Macarena
track: The Brave Matador
track: The Lightning Trumpet

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x7dd616e8bbf427936b8c5ece689be98188453b1e5069184f751e3eb3cb0dd51f

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 960455

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960455

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US9931200071

OTSTimestamp
type: PropertyValue
value: 2026-07-31T19:53:13Z

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 0x7dd616e8bbf427936b8c5ece689be98188453b1e5069184f751e3eb3cb0dd51f. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/US9931200071.
date published: 2026-07-31T19:53:13Z

Por la España Cañi
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 127.904
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
  value: 0.556
additional property: Energy
  type: PropertyValue
  value: 0.238
additional property: Speechiness
  type: PropertyValue
  value: 0.046
additional property: Acousticness
  type: PropertyValue
  value: 0.981
additional property: Instrumentalness
  type: PropertyValue
  value: 0.822
additional property: Liveness
  type: PropertyValue
  value: 0.1
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.275
additional property: Loudness (dB)
  type: PropertyValue
  value: -17.655
additional property: Key Name
  type: PropertyValue
  value: G
additional property: Mode Name
  type: PropertyValue
  value: Major

The Tre-Méndez Polka
type: MusicRecording
duration: PT2M42S
duration ms: 162733
explicit: false
by artist: David Hickman
by artist: Wayne Bergeron
by artist: James Wilt
by artist: Arturo Sandoval
by artist: Rafael Méndez
by artist: Miriam Hickman
in album: A Celebration of Rafael Méndez - Trumpet Fiesta
  type: MusicAlbum
  date published: 2012-02-16
genre: classical-trumpet
isrc code: US9931200077
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T09:59:13+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x344ecb8624feed2d5c21cdde099add82fda35d6c8ec78eaf9fccb5a1d734d848
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960389
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960389
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US9931200077
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T10:20:10Z
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 0x344ecb8624feed2d5c21cdde099add82fda35d6c8ec78eaf9fccb5a1d734d848. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/US9931200077.
  date published: 2026-07-31T10:20:10Z
audio: The Tre-Méndez Polka
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 144.178
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.475
  additional property: Energy
    type: PropertyValue
    value: 0.283
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.984
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.868
  additional property: Liveness
    type: PropertyValue
    value: 0.114
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.537
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.029
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Zandunga
type: MusicRecording
duration: PT2M58S
duration ms: 178373
explicit: false
by artist: David Hickman
by artist: Miriam Hickman
by artist: Rafael Méndez
by artist: Arturo Sandoval
in album: A Celebration of Rafael Méndez - Trumpet Fiesta
  type: MusicAlbum
  date published: 2012-02-16
genre: classical-trumpet
isrc code: US9931200079
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T00:13:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960175
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US9931200079
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T00:16:15Z
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 0x5ff948045ff9acd31bee2c1180f2689d55545c75bc2cda6131e6ff9dc4ca3012. 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/US9931200079.
  date published: 2026-07-30T00:16:15Z
audio: Zandunga
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
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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: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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La Virgen de la Macarena
type: MusicRecording
duration: PT6M2S
duration ms: 362493
explicit: false
by artist: David Hickman
by artist: Arturo Sandoval
by artist: Rafael Méndez
by artist: Miriam Hickman
in album: A Celebration of Rafael Méndez - Trumpet Fiesta
  type: MusicAlbum
  date published: 2012-02-16
genre: classical-trumpet
isrc code: US9931200084
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa5fc4b87048232b608184026fd91f0a8f17b7b38da9e925f963859b61029ee42
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960344
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US9931200084
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T04:14:58Z
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 0xa5fc4b87048232b608184026fd91f0a8f17b7b38da9e925f963859b61029ee42. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/US9931200084.
  date published: 2026-07-31T04:14:58Z
audio: La Virgen de la Macarena
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.372
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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    value: 0.987
  additional property: Instrumentalness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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The Brave Matador
type: MusicRecording
duration: PT3M13S
duration ms: 193466
explicit: false
by artist: David Hickman
by artist: Miriam Hickman
by artist: Rafael Méndez
by artist: James Wilt
by artist: Wayne Bergeron
by artist: Arturo Sandoval
in album: A Celebration of Rafael Méndez - Trumpet Fiesta
  type: MusicAlbum
  date published: 2012-02-16
genre: classical-trumpet
isrc code: US9931200089
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-22T10:48:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x06f70a7b1916b1a5c42cf83a885817bb979a04b9a3fa42e8a38d77507e39a246
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/959128
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US9931200089
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-22T12:33:25Z
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 0x06f70a7b1916b1a5c42cf83a885817bb979a04b9a3fa42e8a38d77507e39a246. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/US9931200089.
  date published: 2026-07-22T12:33:25Z
audio: The Brave Matador
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 132.116
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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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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  additional property: Mode Name
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The Lightning Trumpet
type: MusicRecording
duration: PT2M1S
duration ms: 121533
explicit: false
by artist: David Hickman
by artist: James Wilt
by artist: Wayne Bergeron
by artist: Jens Lindemann
by artist: Miriam Hickman
by artist: Arturo Sandoval
by artist: Robert Karon
by artist: Rafael Méndez
in album: A Celebration of Rafael Méndez - Trumpet Fiesta
  type: MusicAlbum
  date published: 2012-02-16
genre: classical-trumpet
isrc code: US9931200090
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-07-07T18:48:36+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
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 0x808203d54f39f73f75e0b792a6d7f9598a06bd593462d112d625c3f022257760. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/US9931200090.
  date published: 2026-07-08T03:22:41Z
audio: The Lightning Trumpet
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Masterclass Series - Baroque Trumpet Repertoire
type: MusicAlbum
date published: 2009-01-20
track: Concerto for Two Trumpets in C Major
  type: MusicRecording
  duration: PT5M30S
  duration ms: 330600
  explicit: false
  by artist: Antonio Vivaldi
  by artist: David Hickman
  by artist: Gail Novak
  in album: Masterclass Series - Baroque Trumpet Repertoire
    type: MusicAlbum
    date published: 2009-01-20
  isrc code: US9930910089
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T04:14:58+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x3c2706f362bcffea35ea6b5fe4418764135bba486f8682dce996d147549b5a98
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960348
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960348
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US9930910089
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T05:17:02Z
  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 0x3c2706f362bcffea35ea6b5fe4418764135bba486f8682dce996d147549b5a98. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/US9930910089.
    date published: 2026-07-31T05:17:02Z
  audio: Concerto for Two Trumpets in C Major
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
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      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.72
    additional property: Energy
      type: PropertyValue
      value: 0.358
    additional property: Speechiness
      type: PropertyValue
      value: 0.837
    additional property: Acousticness
      type: PropertyValue
      value: 0.921
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.265
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.162
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.941
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

Masterclass Series - Classical Trumpet
type: MusicAlbum
date published: 2008-04-11

Three Trumpet Concertos
type: MusicAlbum
date published: 2000-06-01

Hope's Journey: The Music of Michael Conway Baker
type: MusicAlbum
date published: 1995

Golden Age of Brass: vol. 2
type: MusicAlbum
date published: 1991-05-01

Saint-Saens Chamber Music
type: MusicAlbum
date published: 1995
track: Sonata for oboe and piano, op. 166 - Mvt. I: Andantino
  type: MusicRecording
  duration: PT3M34S
  duration ms: 214240
  explicit: false
  by artist: Banff Camerata
  by artist: Peter Bowman
  in album: Saint-Saens Chamber Music
    type: MusicAlbum
    date published: 1995
  isrc code: US9930511949
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T07:05:33+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x80c77fe82d5ebb77c7e843ff329fc16f3e2059ada7d9b16edb78f2f341b0c653
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US9930511949
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  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 0x80c77fe82d5ebb77c7e843ff329fc16f3e2059ada7d9b16edb78f2f341b0c653. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US9930511949.
    date published: 2026-07-08T03:20:19Z
  audio: Sonata for oboe and piano, op. 166 - Mvt. I: Andantino
    type: AudioObject
    additional property: Tempo (BPM)
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      value: 103.772
    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
      value: 0.143
    additional property: Energy
      type: PropertyValue
      value: 0.009
    additional property: Speechiness
      type: PropertyValue
      value: 0.041
    additional property: Acousticness
      type: PropertyValue
      value: 0.98
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.306
    additional property: Liveness
      type: PropertyValue
      value: 0.357
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.075
    additional property: Loudness (dB)
      type: PropertyValue
      value: -35.777
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Sonata for oboe and piano, op. 166 - Mvt. II: Ad libitum-Allegretto
  type: MusicRecording
  duration: PT5M39S
  duration ms: 339266
  explicit: false
  by artist: Banff Camerata
  by artist: Peter Bowman
  in album: Saint-Saens Chamber Music
    type: MusicAlbum
    date published: 1995
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  additional property: CopyrightID
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  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US9930511950
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  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 0xd626df6a6b4c0a17ee53b79cf7049c728d75e47976b946bb98e71e5c3e2e4e63. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US9930511950.
    date published: 2026-07-08T03:20:19Z
  audio: Sonata for oboe and piano, op. 166 - Mvt. II: Ad libitum-Allegretto
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.108
    additional property: Energy
      type: PropertyValue
      value: 0.007
    additional property: Speechiness
      type: PropertyValue
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In Concert with The University of Illinois Symphonic Band - The Begian Years, Vol. XVI
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date published: 2004-01-01

Collaboration
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date published: 2018-01-19