Södra Länken
type: MusicGroup
description: thumb|Exit Nynäsvägen to west Södra länken (), designated as national road 75 (), is a motorway in Sweden connecting Essingeleden (E4, E20), Stockholm with Värmdöleden (county road 222), Nacka. Södra
album: Kriget
  type: MusicAlbum
  date published: 2024-05-26
album: Annika
  type: MusicAlbum
  date published: 2024-05-26
  track: Annika
    type: MusicRecording
    duration: PT5M0S
    duration ms: 300000
    explicit: false
    by artist: Södra Länken
    in album: Annika
      type: MusicAlbum
      date published: 2024-05-26
    popularity: 1
    isrc code: SEYOK2412927
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-07T20:07:07+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x06719cf004c2bdd6304fdfa1b4bc68e319abcf54c95c228754e2c1d8a606440b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957120
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957120
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEYOK2412927
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-08T03:22:41Z
    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 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 0x06719cf004c2bdd6304fdfa1b4bc68e319abcf54c95c228754e2c1d8a606440b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/SEYOK2412927.
      date published: 2026-07-08T03:22:41Z
    audio: Annika
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 142.502
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.792
      additional property: Energy
        type: PropertyValue
        value: 0.572
      additional property: Speechiness
        type: PropertyValue
        value: 0.058
      additional property: Acousticness
        type: PropertyValue
        value: 0.036
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.446
      additional property: Liveness
        type: PropertyValue
        value: 0.078
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.476
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.408
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Kvinnor för fred
  type: MusicAlbum
  date published: 2022-12-03
  track: Kvinnor för fred
    type: MusicRecording
    duration: PT3M58S
    duration ms: 238336
    explicit: false
    by artist: Södra Länken
    in album: Kvinnor för fred
      type: MusicAlbum
      date published: 2022-12-03
    popularity: 1
    isrc code: SEYOK2238129
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-08-01T02:15:02+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x74b0a9608f33bdf421ec0cde7c41fe56d697ffcd60501d844ae54b96e9a1e5d6
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 960500
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/960500
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEYOK2238129
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-08-01T03:13:03Z
    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 0x74b0a9608f33bdf421ec0cde7c41fe56d697ffcd60501d844ae54b96e9a1e5d6. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/SEYOK2238129.
      date published: 2026-08-01T03:13:03Z
    audio: Kvinnor för fred
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 147.935
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.76
      additional property: Energy
        type: PropertyValue
        value: 0.521
      additional property: Speechiness
        type: PropertyValue
        value: 0.09
      additional property: Acousticness
        type: PropertyValue
        value: 0.005
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.408
      additional property: Liveness
        type: PropertyValue
        value: 0.105
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.469
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.802
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Candyland
  type: MusicAlbum
  date published: 2022-12-03
album: Tusen ton
  type: MusicAlbum
  date published: 2025-11-05
album: Måste du
  type: MusicAlbum
  date published: 2025-11-05