Trondhjems Studentersangforening
type: MusicGroup
genre: choral
popularity: 3
followers: 282
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9f631bc3631340fd3c8eb27210d52f3d9ace937b1e33c9f725bb8a94cf9d773f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ab2fb103-3d14-4e1d-be99-0f557e23b86c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ab2fb103-3d14-4e1d-be99-0f557e23b86c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ab2fb103-3d14-4e1d-be99-0f557e23b86c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9f631bc3631340fd3c8eb27210d52f3d9ace937b1e33c9f725bb8a94cf9d773f","name":"Trondhjems Studentersangforening","registered_at":"2026-06-20T09:40:09Z","symbol":"NIM1581411","token_address":"0xdcf3f0055895d7335b718f33f75fb342e09802b9","type":"artist","uuid":"ab2fb103-3d14-4e1d-be99-0f557e23b86c"}
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 0x9f631bc3631340fd3c8eb27210d52f3d9ace937b1e33c9f725bb8a94cf9d773f. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ab2fb103-3d14-4e1d-be99-0f557e23b86c.json and https://artists.proofprofile.net/proofs/artist/ab2fb103-3d14-4e1d-be99-0f557e23b86c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
  text: {"copyright_id":"0x9f631bc3631340fd3c8eb27210d52f3d9ace937b1e33c9f725bb8a94cf9d773f","name":"Trondhjems Studentersangforening","registered_at":"2026-06-20T09:40:09Z","symbol":"NIM1581411","token_address":"0xdcf3f0055895d7335b718f33f75fb342e09802b9","type":"artist","uuid":"ab2fb103-3d14-4e1d-be99-0f557e23b86c"}
album: Draumkvædet
  type: MusicAlbum
  date published: 1997-12-31
album: Draumkvædet
  type: MusicAlbum
  date published: 1997-12-31
album: Bridge of Song
  type: MusicAlbum
  date published: 2000
album: Draumkvædet
  type: MusicAlbum
  date published: 2000
album: Bridge of Song
  type: MusicAlbum
  date published: 2000-12-31
album: Bridge Of Song
  type: MusicAlbum
  date published: 2013-12-24
  track: Dæ Æ So Fagert I Finneslottet (Arr. For Male Choir By Knut Nystedt)
    type: MusicRecording
    duration: PT1M56S
    duration ms: 116186
    explicit: false
    by artist: Trondhjems Studentersangforening
    in album: Bridge Of Song
      type: MusicAlbum
      date published: 2013-12-24
    genre: choral
    isrc code: FR6V82089804
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-31T21:00:45+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe52d838dae9dcfa1a9a63555ca8cd662e33a680cbfb9d57694bd7a8f82d9808f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 960468
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/960468
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V82089804
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-31T21:25:57Z
    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 0xe52d838dae9dcfa1a9a63555ca8cd662e33a680cbfb9d57694bd7a8f82d9808f. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/FR6V82089804.
      date published: 2026-07-31T21:25:57Z
    audio: Dæ Æ So Fagert I Finneslottet (Arr. For Male Choir By Knut Nystedt)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 121.628
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.189
      additional property: Energy
        type: PropertyValue
        value: 0.016
      additional property: Speechiness
        type: PropertyValue
        value: 0.041
      additional property: Acousticness
        type: PropertyValue
        value: 0.985
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.171
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.066
      additional property: Loudness (dB)
        type: PropertyValue
        value: -32.028
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: Dansen I Trollberget, Op. 118
    type: MusicRecording
    duration: PT10M9S
    duration ms: 609053
    explicit: false
    by artist: Trondhjems Studentersangforening
    in album: Bridge Of Song
      type: MusicAlbum
      date published: 2013-12-24
    genre: choral
    isrc code: FR6V82089814
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-31T17:20:28+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x1f2c0f302eab2b8e4cc02f31b9e80d7f0fa48b0a119e09450d05a06a01268f76
    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/FR6V82089814
    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 0x1f2c0f302eab2b8e4cc02f31b9e80d7f0fa48b0a119e09450d05a06a01268f76. 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/FR6V82089814.
      date published: 2026-07-31T17:29:52Z
    audio: Dansen I Trollberget, Op. 118
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 102.148
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.176
      additional property: Energy
        type: PropertyValue
        value: 0.023
      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

Speechiness
type: PropertyValue
value: 0.047

Acousticness
type: PropertyValue
value: 0.978

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.12

Valence (Positivity)
type: PropertyValue
value: 0.039

Loudness (dB)
type: PropertyValue
value: -30.793

Key Name
type: PropertyValue
value: E

Mode Name
type: PropertyValue
value: Minor