Bart Van Reyn
type: MusicGroup
genre: requiem
popularity: 17
followers: 108
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x61801df6d3be38ce2c61eac4dd6e5c46676e3b4a64880560e47d8877fa3f6d85
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953695
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953695
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6fef21ea-7aa0-4640-acbd-eac26f8a4f01.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6fef21ea-7aa0-4640-acbd-eac26f8a4f01.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6fef21ea-7aa0-4640-acbd-eac26f8a4f01
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T21:42:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x61801df6d3be38ce2c61eac4dd6e5c46676e3b4a64880560e47d8877fa3f6d85","name":"Bart Van Reyn","registered_at":"2026-06-14T16:08:17Z","symbol":"NIM0505485","token_address":"0x0469e58462350c92558092a2086f32a01c9b6950","type":"artist","uuid":"6fef21ea-7aa0-4640-acbd-eac26f8a4f01"}
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61801df6d3be38ce2c61eac4dd6e5c46676e3b4a64880560e47d8877fa3f6d85. Chain 2 (Bitcoin): anchored in block 953695 (2026-06-14T21:42:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6fef21ea-7aa0-4640-acbd-eac26f8a4f01.json and https://artists.proofprofile.net/proofs/artist/6fef21ea-7aa0-4640-acbd-eac26f8a4f01.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T21:42:01Z
  text: {"copyright_id":"0x61801df6d3be38ce2c61eac4dd6e5c46676e3b4a64880560e47d8877fa3f6d85","name":"Bart Van Reyn","registered_at":"2026-06-14T16:08:17Z","symbol":"NIM0505485","token_address":"0x0469e58462350c92558092a2086f32a01c9b6950","type":"artist","uuid":"6fef21ea-7aa0-4640-acbd-eac26f8a4f01"}
album: Il pianto di Maria: No. 6. Aria, "Sventurati miei sospiri" (Soprano)
  type: MusicAlbum
  date published: 2023-08-17
track: Dixit Dominus, HWV 232: No. 1, Chorus, "Dixit Dominus, Domino meo" (Chorus, Soprano 1, Soprano 2, Alto, Tenor)
  type: MusicRecording
  duration: PT4M48S
  duration ms: 288453
  explicit: false
  by artist: George Frideric Handel
  by artist: Anonymous
  by artist: Il Gardellino
  by artist: Bart Van Reyn
  by artist: Vlaams Radiokoor
  in album: Handel: Dixit Dominus - Ferrandini: Il pianto di Maria
    type: MusicAlbum
    date published: 2023-09-08
  genre: classical
  genre: opera
  genre: early-music
  genre: baroque
  genre: english-baroque
  genre: german-baroque
  genre: choral
  isrc code: BEE022313001
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T05:57:44+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb734e0b34d10619d5223e7ebbceb73dc17f5abd495806d8bce034fe9f62b5123
  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/BEE022313001
  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 0xb734e0b34d10619d5223e7ebbceb73dc17f5abd495806d8bce034fe9f62b5123. 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/BEE022313001.
    date published: 2026-07-08T03:20:19Z
  audio: Dixit Dominus, HWV 232: No. 1, Chorus, "Dixit Dominus, Domino meo" (Chorus, Soprano 1, Soprano 2, Alto, Tenor)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 129.585
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.378
    additional property: Energy
      type: PropertyValue
      value: 0.407
    additional property: Speechiness
      type: PropertyValue
      value: 0.034
    additional property: Acousticness
      type: PropertyValue
      value: 0.931
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.397
    additional property: Liveness
      type: PropertyValue
      value: 0.287
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.449
    additional property: Loudness (dB)
      type: PropertyValue
      value: -16.487
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Dixit Dominus, HWV 232: No. 6, Chorus, "Dominus a dextris tuis" (Chorus, Soprano 1, Soprano 2, Alto, Tenor, Bass)
  type: MusicRecording
  duration: PT2M41S
  duration ms: 161546
  explicit: false
  by artist: George Frideric Handel
  by artist: Anonymous
  by artist: Il Gardellino
  by artist: Bart Van Reyn
  by artist: Vlaams Radiokoor
  by artist: Sophie Rennert
  by artist: Deborah Cachet
  by artist: Rachel Redmond
  by artist: Michiel Haspeslagh
  by artist: Alberto Martinez
  in album: Handel: Dixit Dominus - Ferrandini: Il pianto di Maria
    type: MusicAlbum
    date published: 2023-09-08
  genre: classical
  genre: opera
  genre: early-music
  genre: baroque
  genre: english-baroque
  genre: german-baroque
  genre: choral
  isrc code: BEE022313006
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T06:10:44+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x1b0f0dcf5c2bfcc69e0d282395c4e02e7b8db7ea1fbaae8a5fa2e5cdddb9ae7d
  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/BEE022313006
  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 0x1b0f0dcf5c2bfcc69e0d282395c4e02e7b8db7ea1fbaae8a5fa2e5cdddb9ae7d. 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/BEE022313006.
    date published: 2026-07-08T03:20:19Z
  audio: Dixit Dominus, HWV 232: No. 6, Chorus, "Dominus a dextris tuis" (Chorus, Soprano 1, Soprano 2, Alto, Tenor, Bass)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 108.17
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
    additional property: Time Signature
    additional property: Danceability
    additional property: Energy
    additional property: Speechiness
    additional property: Acousticness
    additional property: Instrumentalness
    additional property: Liveness
    additional property: Valence (Positivity)
    additional property: Loudness (dB)
    additional property: Key Name
    additional property: Mode Name
track: Il pianto di Maria: No. 2, Cavatina, "Se d’un Dio fui fatta Madre" (Soprano)

Mode (Major/Minor)
type: PropertyValue
value: 0

Time Signature
type: PropertyValue
value: 5

Danceability
type: PropertyValue
value: 0.364

Energy
type: PropertyValue
value: 0.42

Speechiness
type: PropertyValue
value: 0.035

Acousticness
type: PropertyValue
value: 0.925

Instrumentalness
type: PropertyValue
value: 0.046

Liveness
type: PropertyValue
value: 0.192

Valence (Positivity)
type: PropertyValue
value: 0.516

Loudness (dB)
type: PropertyValue
value: -17.431

Key Name
type: PropertyValue
value: C#

Mode Name
type: PropertyValue
value: Minor

Il pianto di Maria: No. 2, Cavatina, "Se d’un Dio fui fatta Madre" (Soprano)
type: MusicRecording
duration: PT3M1S
duration ms: 181053
explicit: false
by artist: Giovanni Battista Ferrandini
by artist: Anonymous
by artist: Il Gardellino
by artist: Bart Van Reyn
by artist: Sophie Rennert
in album: Handel: Dixit Dominus - Ferrandini: Il pianto di Maria
  type: MusicAlbum
  date published: 2023-09-08
genre: italian-baroque
isrc code: BEE022313011
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T16:33:55+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x32ceb423af930fd6d191faca08b4bbf5a39fe9ba7e7f7873b53af5e485cb1c7c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960441
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960441
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEE022313011
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T17:29:52Z
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 0x32ceb423af930fd6d191faca08b4bbf5a39fe9ba7e7f7873b53af5e485cb1c7c. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/BEE022313011.
  date published: 2026-07-31T17:29:52Z
audio: Il pianto di Maria: No. 2, Cavatina, "Se d’un Dio fui fatta Madre" (Soprano)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 83.736
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.201
  additional property: Energy
    type: PropertyValue
    value: 0.041
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.96
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.98
  additional property: Liveness
    type: PropertyValue
    value: 0.111
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.039
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.189
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major