Highgate School Choir
type: MusicGroup
genre: choral
genre: requiem
popularity: 7
followers: 22
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb45b26964ad1b2b9bd3a9d9faea4448f9a2bbbf49a17e98c4dec083600fbc20a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953895
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953895
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0fe4e71b-868c-4af6-86b2-1c70b3d295d2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0fe4e71b-868c-4af6-86b2-1c70b3d295d2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0fe4e71b-868c-4af6-86b2-1c70b3d295d2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T05:46:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb45b26964ad1b2b9bd3a9d9faea4448f9a2bbbf49a17e98c4dec083600fbc20a","name":"Highgate School Choir","registered_at":"2026-06-15T19:05:03Z","symbol":"NIM0803008","token_address":"0xb9f0ec27272e84ee6b88c4e6dbc8a26b29b5cdc1","type":"artist","uuid":"0fe4e71b-868c-4af6-86b2-1c70b3d295d2"}
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 0xb45b26964ad1b2b9bd3a9d9faea4448f9a2bbbf49a17e98c4dec083600fbc20a. Chain 2 (Bitcoin): anchored in block 953895 (2026-06-16T05:46:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0fe4e71b-868c-4af6-86b2-1c70b3d295d2.json and https://artists.proofprofile.net/proofs/artist/0fe4e71b-868c-4af6-86b2-1c70b3d295d2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T05:46:35Z
  text: {"copyright_id":"0xb45b26964ad1b2b9bd3a9d9faea4448f9a2bbbf49a17e98c4dec083600fbc20a","name":"Highgate School Choir","registered_at":"2026-06-15T19:05:03Z","symbol":"NIM0803008","token_address":"0xb9f0ec27272e84ee6b88c4e6dbc8a26b29b5cdc1","type":"artist","uuid":"0fe4e71b-868c-4af6-86b2-1c70b3d295d2"}
track: War Requiem, Op. 66: I. Requiem aeternam: a. Requiem aeternam - 2023 Remastered Version
  type: MusicRecording
  duration: PT5M54S
  duration ms: 354613
  explicit: false
  by artist: Benjamin Britten
  by artist: London Symphony Chorus
  by artist: The Bach Choir
  by artist: Highgate School Choir
  by artist: Melos Ensemble
  by artist: Simon Preston
  by artist: London Symphony Orchestra
  in album: Britten: War Requiem (2023 Remastered Version)
    type: MusicAlbum
    date published: 2023-11-03
  isrc code: GBBBC2300943
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-29T14:04:28+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8229d5c9444ed0ad7b79b53b8a1be82d56b1f804b595c6948288f7dbcc756a43
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960117
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960117
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBC2300943
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-29T14:28:24Z
  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 0x8229d5c9444ed0ad7b79b53b8a1be82d56b1f804b595c6948288f7dbcc756a43. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/GBBBC2300943.
    date published: 2026-07-29T14:28:24Z
  audio: War Requiem, Op. 66: I. Requiem aeternam: a. Requiem aeternam - 2023 Remastered Version
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 122.673
    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: 0.156
    additional property: Energy
      type: PropertyValue
      value: 0.046
    additional property: Speechiness
      type: PropertyValue
      value: 0.043
    additional property: Acousticness
      type: PropertyValue
      value: 0.94
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.846
    additional property: Liveness
      type: PropertyValue
      value: 0.254
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.033
    additional property: Loudness (dB)
      type: PropertyValue
      value: -25.86
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: War Requiem, Op. 66: III. Offertorium: a. Domine Jesu Christe - 2023 Remastered Version
  type: MusicRecording
  duration: PT3M32S
  duration ms: 212053
  explicit: false
  by artist: Benjamin Britten
  by artist: Highgate School Choir
  by artist: Simon Preston
  by artist: London Symphony Chorus
  by artist: The Bach Choir
  by artist: Melos Ensemble
  by artist: London Symphony Orchestra
  in album: Britten: War Requiem (2023 Remastered Version)
    type: MusicAlbum
    date published: 2023-11-03
  isrc code: GBBBC2300954
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-30T09:55:49+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x274851c487c30f0dc8590f938eb96de441845694a7611b786a157b5f97728afc
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960241
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960241
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBC2300954
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T09:58:01Z
  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 0x274851c487c30f0dc8590f938eb96de441845694a7611b786a157b5f97728afc. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/GBBBC2300954.
    date published: 2026-07-30T09:58:01Z
  audio: War Requiem, Op. 66: III. Offertorium: a. Domine Jesu Christe - 2023 Remastered Version
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 111.416
    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: 0.207
    additional property: Energy
      type: PropertyValue
      value: 0.295
    additional property: Speechiness
      type: PropertyValue
      value: 0.058
    additional property: Acousticness
      type: PropertyValue
      value: 0.976
    additional property: Instrumentalness
    additional property: Liveness
    additional property: Valence (Positivity)
    additional property: Loudness (dB)
    additional property: Key Name
    additional property: Mode Name
track: War Requiem, Op. 66: III. Offertorium: b. So Abram Rose, and Clave the Wood - 2023 Remastered Version
track: War Requiem, Op. 66: VI. Libera me: c. Let Us Sleep Now...In Paradisum - 2023 Remastered Version

Instrumentalness
type: PropertyValue
value: 0.916

Liveness
type: PropertyValue
value: 0.608

Valence (Positivity)
type: PropertyValue
value: 0.035

Loudness (dB)
type: PropertyValue
value: -18.605

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Major

War Requiem, Op. 66: III. Offertorium: b. So Abram Rose, and Clave the Wood - 2023 Remastered Version
type: MusicRecording
duration: PT6M10S
duration ms: 370466
explicit: false
by artist: Benjamin Britten
by artist: Dietrich Fischer-Dieskau
by artist: Sir Peter Pears
by artist: Highgate School Choir
by artist: London Symphony Chorus
by artist: The Bach Choir
by artist: Simon Preston
by artist: Melos Ensemble
by artist: London Symphony Orchestra
in album: Britten: War Requiem (2023 Remastered Version)
  type: MusicAlbum
  date published: 2023-11-03
isrc code: GBBBC2300955
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T03:20:01+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x473fc56800b50e4fc7087db6958274825ae0bee27baaca08787f36f0e5358d7e
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/GBBBC2300955
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 0x473fc56800b50e4fc7087db6958274825ae0bee27baaca08787f36f0e5358d7e. 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/GBBBC2300955.
  date published: 2026-07-08T03:20:19Z
audio: War Requiem, Op. 66: III. Offertorium: b. So Abram Rose, and Clave the Wood - 2023 Remastered Version
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 142.997
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.294
  additional property: Energy
    type: PropertyValue
    value: 0.083
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.946
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.008
  additional property: Liveness
    type: PropertyValue
    value: 0.102
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.069
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.203
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

War Requiem, Op. 66: VI. Libera me: c. Let Us Sleep Now...In Paradisum - 2023 Remastered Version
type: MusicRecording
duration: PT5M36S
duration ms: 336106
explicit: false
by artist: Benjamin Britten
by artist: Dietrich Fischer-Dieskau
by artist: Sir Peter Pears
by artist: Galina Vishnevskaya
by artist: Highgate School Choir
by artist: Simon Preston
by artist: London Symphony Chorus
by artist: The Bach Choir
by artist: Melos Ensemble
by artist: London Symphony Orchestra
in album: Britten: War Requiem (2023 Remastered Version)
  type: MusicAlbum
  date published: 2023-11-03
isrc code: GBBBC2300961
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T17:16:35+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2deb51391b21c1e418624a3a80451ec10dfcc5b9dcaa211f161184197f70df7e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960284
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960284
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBC2300961
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T17:23:26Z
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 0x2deb51391b21c1e418624a3a80451ec10dfcc5b9dcaa211f161184197f70df7e. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBC2300961.
  date published: 2026-07-30T17:23:26Z
audio: War Requiem, Op. 66: VI. Libera me: c. Let Us Sleep Now...In Paradisum - 2023 Remastered Version
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 120.442
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.147
  additional property: Energy
    type: PropertyValue
    value: 0.12
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.966
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.661
  additional property: Liveness
    type: PropertyValue
    value: 0.114
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.033
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.084
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major