David Nortman
type: MusicGroup
popularity: 5
followers: 3
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0ac9ee2060f1073b4830e64fe23b905c85230662fc148c1e415254d2ac32f3f1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953933
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953933
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1fc7a5ac-8cd6-4ef2-b9be-2803e907ccbc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1fc7a5ac-8cd6-4ef2-b9be-2803e907ccbc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1fc7a5ac-8cd6-4ef2-b9be-2803e907ccbc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T11:13:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0ac9ee2060f1073b4830e64fe23b905c85230662fc148c1e415254d2ac32f3f1","name":"David Nortman","registered_at":"2026-06-16T00:41:04Z","symbol":"NIM0883171","token_address":"0xac94472acb7c99a6bcaa25345c054e2ea2d057a2","type":"artist","uuid":"1fc7a5ac-8cd6-4ef2-b9be-2803e907ccbc"}
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 0x0ac9ee2060f1073b4830e64fe23b905c85230662fc148c1e415254d2ac32f3f1. Chain 2 (Bitcoin): anchored in block 953933 (2026-06-16T11:13:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1fc7a5ac-8cd6-4ef2-b9be-2803e907ccbc.json and https://artists.proofprofile.net/proofs/artist/1fc7a5ac-8cd6-4ef2-b9be-2803e907ccbc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T11:13:24Z
  text: {"copyright_id":"0x0ac9ee2060f1073b4830e64fe23b905c85230662fc148c1e415254d2ac32f3f1","name":"David Nortman","registered_at":"2026-06-16T00:41:04Z","symbol":"NIM0883171","token_address":"0xac94472acb7c99a6bcaa25345c054e2ea2d057a2","type":"artist","uuid":"1fc7a5ac-8cd6-4ef2-b9be-2803e907ccbc"}
track: Messe de minuit pour Noel, H. 9: (Kyrie) Noel: Joseph est bien marie - Kyrie eleison - Noel: Et sy je la revoy - Christe eleison - Une jeune pucelle - Kyrie eleison
  type: MusicRecording
  duration: PT7M58S
  duration ms: 478226
  explicit: false
  by artist: Marc-Antoine Charpentier
  by artist: Jane Archibald
  by artist: Michele de Boer
  by artist: Anne L'Esperance
  by artist: Marion Newman
  by artist: Nancy Reynolds
  by artist: Colin Ainsworth
  by artist: James McLennan
  by artist: David Nortman
  by artist: Giles Tomkins
  by artist: Estaban Cambre
  by artist: Aradia Ensemble
  by artist: Kevin Mallon
  in album: Charpentier, M.-A.: Messe de Minuit pour Noel / Te Deum
    type: MusicAlbum
    date published: 2003-11-09
  genre: classical
  genre: early-music
  genre: baroque
  genre: french-baroque
  isrc code: HKI190305003
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-08-01T00:15:28+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x5e5fc9d7b3d218e7a525c6ee4e8fa553e6476e831984d02574035edc3d2e24f8
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960489
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960489
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190305003
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-08-01T00:40:43Z
  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 0x5e5fc9d7b3d218e7a525c6ee4e8fa553e6476e831984d02574035edc3d2e24f8. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/HKI190305003.
    date published: 2026-08-01T00:40:43Z
  audio: Messe de minuit pour Noel, H. 9: (Kyrie) Noel: Joseph est bien marie - Kyrie eleison - Noel: Et sy je la revoy - Christe eleison - Une jeune pucelle - Kyrie eleison
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 162.256
    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: 0.163
    additional property: Energy
      type: PropertyValue
      value: 0.031
    additional property: Speechiness
      type: PropertyValue
      value: 0.052
    additional property: Acousticness
      type: PropertyValue
      value: 0.937
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.039
    additional property: Liveness
      type: PropertyValue
      value: 0.095
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.036
    additional property: Loudness (dB)
      type: PropertyValue
      value: -29.858
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Messe de minuit pour Noel, H. 9: Noel: Laissez paitre vos betes
  type: MusicRecording
  duration: PT1M41S
  duration ms: 101320
  explicit: false
  by artist: Marc-Antoine Charpentier
  by artist: Jane Archibald
  by artist: Michele de Boer
  by artist: Anne L'Esperance
  by artist: Marion Newman
  by artist: Nancy Reynolds
  by artist: Colin Ainsworth
  by artist: James McLennan
  by artist: David Nortman
  by artist: Giles Tomkins
  by artist: Estaban Cambre
  by artist: Aradia Ensemble
  by artist: Kevin Mallon
  in album: Charpentier, M.-A.: Messe de Minuit pour Noel / Te Deum
    type: MusicAlbum
    date published: 2003-11-09
  genre: classical
  genre: early-music
  genre: baroque
  genre: french-baroque
  isrc code: HKI190305006
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-30T17:51:25+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xdd94b32b4b3b317e47496107a60c59f108ac1c912761f6bd72a4e5c93746258b
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960291
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960291
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190305006
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T18:23:33Z
  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 0xdd94b32b4b3b317e47496107a60c59f108ac1c912761f6bd72a4e5c93746258b. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/HKI190305006.
    date published: 2026-07-30T18:23:33Z
  audio: Messe de minuit pour Noel, H. 9: Noel: Laissez paitre vos betes
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 126.72
    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: Messe de minuit pour Noel, H. 9: Sanctus and Benedictus
track: Messe de minuit pour Noel, H. 9: Agnus Dei

Mode (Major/Minor)
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value: 1

Time Signature
type: PropertyValue
value: 5

Danceability
type: PropertyValue
value: 0.46

Energy
type: PropertyValue
value: 0.025

Speechiness
type: PropertyValue
value: 0.051

Acousticness
type: PropertyValue
value: 0.915

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.219

Valence (Positivity)
type: PropertyValue
value: 0.537

Loudness (dB)
type: PropertyValue
value: -32.873

Key Name
type: PropertyValue
value: C#

Mode Name
type: PropertyValue
value: Major

Messe de minuit pour Noel, H. 9: Sanctus and Benedictus
type: MusicRecording
duration: PT3M10S
duration ms: 190893
explicit: false
by artist: Marc-Antoine Charpentier
by artist: Jane Archibald
by artist: Michele de Boer
by artist: Anne L'Esperance
by artist: Marion Newman
by artist: Nancy Reynolds
by artist: Colin Ainsworth
by artist: James McLennan
by artist: David Nortman
by artist: Giles Tomkins
by artist: Estaban Cambre
by artist: Aradia Ensemble
by artist: Kevin Mallon
in album: Charpentier, M.-A.: Messe de Minuit pour Noel / Te Deum
  type: MusicAlbum
  date published: 2003-11-09
genre: classical
genre: early-music
genre: baroque
genre: french-baroque
isrc code: HKI190305007
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T15:44:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc14459f0b84b1bd26fd4c416eb8ae79b3e8a7517fb8655a9e48f8cf498f66dff
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960427
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960427
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190305007
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:59:18Z
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 0xc14459f0b84b1bd26fd4c416eb8ae79b3e8a7517fb8655a9e48f8cf498f66dff. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/HKI190305007.
  date published: 2026-07-31T15:59:18Z
audio: Messe de minuit pour Noel, H. 9: Sanctus and Benedictus
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 139.498
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.235
  additional property: Energy
    type: PropertyValue
    value: 0.064
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.978
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.045
  additional property: Liveness
    type: PropertyValue
    value: 0.101
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.102
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.754
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Messe de minuit pour Noel, H. 9: Agnus Dei
type: MusicRecording
duration: PT2M19S
duration ms: 139813
explicit: false
by artist: Marc-Antoine Charpentier
by artist: Jane Archibald
by artist: Michele de Boer
by artist: Anne L'Esperance
by artist: Marion Newman
by artist: Nancy Reynolds
by artist: Colin Ainsworth
by artist: James McLennan
by artist: David Nortman
by artist: Giles Tomkins
by artist: Estaban Cambre
by artist: Aradia Ensemble
by artist: Kevin Mallon
in album: Charpentier, M.-A.: Messe de Minuit pour Noel / Te Deum
  type: MusicAlbum
  date published: 2003-11-09
genre: classical
genre: early-music
genre: baroque
genre: french-baroque
isrc code: HKI190305008
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T06:43:53+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd0763c00d2d5e34cc945e64c25273dbe2f03e0f5ab4185d0a90cd385c11f1682
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960362
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960362
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190305008
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T06:58:00Z
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 0xd0763c00d2d5e34cc945e64c25273dbe2f03e0f5ab4185d0a90cd385c11f1682. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/HKI190305008.
  date published: 2026-07-31T06:58:00Z
audio: Messe de minuit pour Noel, H. 9: Agnus Dei
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 96.87
  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: 0.439
  additional property: Energy
    type: PropertyValue
    value: 0.056
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.966
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.013
  additional property: Liveness
    type: PropertyValue
    value: 0.052
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.349
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.66
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major