St. Hallvard-Guttene
type: MusicGroup
genre: gregorian chant
popularity: 14
followers: 743
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9cc45a55de8832160c7d5d066ddddfbaf78c24d679eea8b8354c3b7c05ab93a6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953654
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953654
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/48c96b16-dd9d-4729-95ce-3d110c363793.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/48c96b16-dd9d-4729-95ce-3d110c363793.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/48c96b16-dd9d-4729-95ce-3d110c363793
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T16:26:51Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9cc45a55de8832160c7d5d066ddddfbaf78c24d679eea8b8354c3b7c05ab93a6","name":"St. Hallvard-Guttene","registered_at":"2026-06-14T12:10:11Z","symbol":"NIM0448665","token_address":"0x023627d0d15d9af0d9fea91be3b29dd0f5f4d592","type":"artist","uuid":"48c96b16-dd9d-4729-95ce-3d110c363793"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc45a55de8832160c7d5d066ddddfbaf78c24d679eea8b8354c3b7c05ab93a6. Chain 2 (Bitcoin): anchored in block 953654 (2026-06-14T16:26:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/48c96b16-dd9d-4729-95ce-3d110c363793.json and https://artists.proofprofile.net/proofs/artist/48c96b16-dd9d-4729-95ce-3d110c363793.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T16:26:51Z
  text: {"copyright_id":"0x9cc45a55de8832160c7d5d066ddddfbaf78c24d679eea8b8354c3b7c05ab93a6","name":"St. Hallvard-Guttene","registered_at":"2026-06-14T12:10:11Z","symbol":"NIM0448665","token_address":"0x023627d0d15d9af0d9fea91be3b29dd0f5f4d592","type":"artist","uuid":"48c96b16-dd9d-4729-95ce-3d110c363793"}
album: St. Hallvard-guttene 1
  type: MusicAlbum
  date published: 1972
album: St. Hallvard-guttene 2
  type: MusicAlbum
  date published: 1986
album: Deilig er jorden
  type: MusicAlbum
  date published: 1990-11-14
album: Deilig er jorden
  type: MusicAlbum
  date published: 1990-11-14
album: Deilig er jorden
  type: MusicAlbum
  date published: 1990-11-14
album: Canto Gregoriano Kyrie Eléison
  type: MusicAlbum
  date published: 1999-06-17
  track: Ad Te Levávi: Inngangsvers 1. Adventsøndag
    type: MusicRecording
    duration: PT4M46S
    duration ms: 286066
    explicit: false
    by artist: St. Hallvard-Guttene
    in album: Canto Gregoriano Kyrie Eléison
      type: MusicAlbum
      date published: 1999-06-17
    genre: gregorian chant
    isrc code: NOFCT2401010
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T03:00:46+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x626559fcef76298ffde0c23718c4094e4e7673a73d786be76dd33fcc1319da80
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956776
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956776
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOFCT2401010
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:59:37Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x626559fcef76298ffde0c23718c4094e4e7673a73d786be76dd33fcc1319da80. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/NOFCT2401010.
      date published: 2026-07-05T10:59:37Z
    audio: Ad Te Levávi: Inngangsvers 1. Adventsøndag
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 104.139
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.194
      additional property: Energy
        type: PropertyValue
        value: 0.05
      additional property: Speechiness
        type: PropertyValue
        value: 0.053
      additional property: Acousticness
        type: PropertyValue
        value: 0.983
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.176
      additional property: Liveness
        type: PropertyValue
        value: 0.093
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.038
      additional property: Loudness (dB)
        type: PropertyValue
        value: -25.796
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Rorate Cæli: Hymne i Adventstiden
    type: MusicRecording
    duration: PT5M42S
    duration ms: 342400
    explicit: false
    by artist: St. Hallvard-Guttene
    in album: Canto Gregoriano Kyrie Eléison
      type: MusicAlbum
      date published: 1999-06-17
    genre: gregorian chant
    isrc code: NOFCT2401020
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T04:14:08+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2a524506d5d266f7ab1ad0b0400b85f83900471b82099fe2d71dad32cfa1ad9f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956772
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956772
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOFCT2401020
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:01:46Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a524506d5d266f7ab1ad0b0400b85f83900471b82099fe2d71dad32cfa1ad9f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/NOFCT2401020.
      date published: 2026-07-05T10:01:46Z
    audio: Rorate Cæli: Hymne i Adventstiden
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 138.606
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.21
      additional property: Energy
        type: PropertyValue
        value: 0.026
      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: Nos Autem Gloriári: Ingangsvers på Skjærtorsdag
  track: Ubi Cáritas et Ámor: Antofon ved Nattverdens Liturgi på Skjærtorsdag
  track: Parce Dómine: Antifon i Advent/ Fastetiden
  track: Crux Fidélis: Hymne på Langfredag
  track: Et Valde Mane/ Benedictus: Antifon og Sakarias Lovsang
  track: O Fílli Et Filæ: Hymne i Påsketiden
  track: Regina Cæli: Maria Hymne fra Påske til Treenighet

Speechiness
type: PropertyValue
value: 0.055

Acousticness
type: PropertyValue
value: 0.984

Instrumentalness
type: PropertyValue
value: 0.015

Liveness
type: PropertyValue
value: 0.183

Valence (Positivity)
type: PropertyValue
value: 0.036

Loudness (dB)
type: PropertyValue
value: -28.457

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Minor

Nos Autem Gloriári: Ingangsvers på Skjærtorsdag
type: MusicRecording
duration: PT3M34S
duration ms: 214800
explicit: false
by artist: St. Hallvard-Guttene
in album: Canto Gregoriano Kyrie Eléison
  type: MusicAlbum
  date published: 1999-06-17
genre: gregorian chant
isrc code: NOFCT2401030
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-04T12:22:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x37b3afd1b77808e8388a9c1fb29f3efa23c0ccf983ff7cec673211d916b5b021
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956725
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956725
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOFCT2401030
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T01:12:41Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b3afd1b77808e8388a9c1fb29f3efa23c0ccf983ff7cec673211d916b5b021. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/NOFCT2401030.
  date published: 2026-07-05T01:12:41Z
audio: Nos Autem Gloriári: Ingangsvers på Skjærtorsdag
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 140.17
  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: 0.206
  additional property: Energy
    type: PropertyValue
    value: 0.082
  additional property: Speechiness
    type: PropertyValue
    value: 0.056
  additional property: Acousticness
    type: PropertyValue
    value: 0.984
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.017
  additional property: Liveness
    type: PropertyValue
    value: 0.108
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.037
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.309
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Ubi Cáritas et Ámor: Antofon ved Nattverdens Liturgi på Skjærtorsdag
type: MusicRecording
duration: PT3M17S
duration ms: 197240
explicit: false
by artist: St. Hallvard-Guttene
in album: Canto Gregoriano Kyrie Eléison
  type: MusicAlbum
  date published: 1999-06-17
genre: gregorian chant
isrc code: NOFCT2411050
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-17T18:02:55+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3085d8b607211b7fe191555f6b67fb80992bad1960a837bf3c9f14e2f0063a7e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958444
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958444
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOFCT2411050
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-17T19:12:23Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3085d8b607211b7fe191555f6b67fb80992bad1960a837bf3c9f14e2f0063a7e. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/NOFCT2411050.
  date published: 2026-07-17T19:12:23Z
audio: Ubi Cáritas et Ámor: Antofon ved Nattverdens Liturgi på Skjærtorsdag
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 79.974
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.143
  additional property: Energy
    type: PropertyValue
    value: 0.034
  additional property: Speechiness
    type: PropertyValue
    value: 0.064
  additional property: Acousticness
    type: PropertyValue
    value: 0.983
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.003
  additional property: Liveness
    type: PropertyValue
    value: 0.159
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.039
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.169
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Parce Dómine: Antifon i Advent/ Fastetiden
type: MusicRecording
duration: PT4M42S
duration ms: 282866
explicit: false
by artist: St. Hallvard-Guttene
in album: Canto Gregoriano Kyrie Eléison
  type: MusicAlbum
  date published: 1999-06-17
genre: gregorian chant
isrc code: NOFCT2401060
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-20T12:17:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6629e8e78219fab46d3f1a6685a3ce469d9658077923411a2cc51d3478106f1e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958878
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958878
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOFCT2401060
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-20T15:19:52Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6629e8e78219fab46d3f1a6685a3ce469d9658077923411a2cc51d3478106f1e. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T15:19:52Z), 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/NOFCT2401060.
  date published: 2026-07-20T15:19:52Z
audio: Parce Dómine: Antifon i Advent/ Fastetiden
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 107.807
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.2
  additional property: Energy
    type: PropertyValue
    value: 0.01
  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
    type: PropertyValue
    value: 0.985
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.026
  additional property: Liveness
    type: PropertyValue
    value: 0.132
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.045
  additional property: Loudness (dB)
    type: PropertyValue
    value: -31.456
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Crux Fidélis: Hymne på Langfredag
type: MusicRecording
duration: PT5M38S
duration ms: 338600
explicit: false
by artist: St. Hallvard-Guttene
in album: Canto Gregoriano Kyrie Eléison
  type: MusicAlbum
  date published: 1999-06-17
genre: gregorian chant
isrc code: NOFCT2401070
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-03T20:43:04+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2e49d07d28307ce92554e53730eb4839238880264dbc79e2d7f2eff027c94213
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956656
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956656
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOFCT2401070
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-04T14:03:39Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e49d07d28307ce92554e53730eb4839238880264dbc79e2d7f2eff027c94213. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/NOFCT2401070.
  date published: 2026-07-04T14:03:39Z
audio: Crux Fidélis: Hymne på Langfredag
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 114.307
  additional property: Musical Key
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Et Valde Mane/ Benedictus: Antifon og Sakarias Lovsang
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genre: gregorian chant
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x344f6d502b73aff36580155eb56abf35cec52c72586ef9beb334a7d00b5b2d7e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/NOFCT2411080.
  date published: 2026-07-05T19:27:56Z
audio: Et Valde Mane/ Benedictus: Antifon og Sakarias Lovsang
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O Fílli Et Filæ: Hymne i Påsketiden
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  date published: 1999-06-17
genre: gregorian chant
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27678aebf2ab55d47d0e0b8cb2a1b5056012c013562e2513ecc52301973c73b. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/NOFCT2401090.
  date published: 2026-07-03T04:03:57Z
audio: O Fílli Et Filæ: Hymne i Påsketiden
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Regina Cæli: Maria Hymne fra Påske til Treenighet
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in album: Canto Gregoriano Kyrie Eléison
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0381ca69fc91d1307f1334c23a223da84e75b5f61dd7b64328834e41e2971da1. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:34:27Z), 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/NOFCT2401110.
  date published: 2026-07-19T18:34:27Z
audio: Regina Cæli: Maria Hymne fra Påske til Treenighet
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