Askanäs Kammarkvartett
type: MusicGroup
genre: swedish ballads
popularity: 11
followers: 54
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x125b0492b53434ed1803c5d0d0f8adb3c7454b550b9575c10972cd22e2b3e858
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953638
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/385fb94d-4c14-4e6d-aafd-6673bd44f29d.ots
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additional property: OTSVerificationAPI
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x125b0492b53434ed1803c5d0d0f8adb3c7454b550b9575c10972cd22e2b3e858. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/385fb94d-4c14-4e6d-aafd-6673bd44f29d.json and https://artists.proofprofile.net/proofs/artist/385fb94d-4c14-4e6d-aafd-6673bd44f29d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T15:20:52Z
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album: Vi gjorde det igen
  type: MusicAlbum
  date published: 2023-02-17
  track: Om natten är alla änkor grå
  track: I de många valens land
  track: Havsmelodi
  track: Ett minne blott
  track: För bra för att vara sant
album: Havsmelodi (feat. Filip Ekestubbe, Ludvig Eriksson and Ludwig Gustavsson)
  type: MusicAlbum
  date published: 2022-05-26
track: En midsommardröm

Om natten är alla änkor grå
type: MusicRecording
duration: PT5M16S
duration ms: 316717
explicit: false
by artist: Amanda Ginsburg
by artist: Askanäs Kammarkvartett
by artist: Filip Ekestubbe
by artist: Ludvig Eriksson
by artist: Ludwig Gustavsson
in album: Vi gjorde det igen
  type: MusicAlbum
  date published: 2023-02-17
popularity: 7
isrc code: QM4TW2303571
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2303571
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T06:56:49Z
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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff9e2edc378d769e599149c4f821206ce6cfbdc0909c51d16bd6d132eeda2e0d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QM4TW2303571.
  date published: 2026-07-06T06:56:49Z
audio: Om natten är alla änkor grå
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  additional property: Speechiness
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  additional property: Instrumentalness
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  additional property: Valence (Positivity)
    type: PropertyValue
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    type: PropertyValue
    value: G
  additional property: Mode Name
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I de många valens land
type: MusicRecording
duration: PT5M54S
duration ms: 354910
explicit: false
by artist: Amanda Ginsburg
by artist: Askanäs Kammarkvartett
by artist: Filip Ekestubbe
by artist: Ludvig Eriksson
by artist: Ludwig Gustavsson
in album: Vi gjorde det igen
  type: MusicAlbum
  date published: 2023-02-17
popularity: 4
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5144275aa8886fadc3db8bf2b56fe4317668e4002be5ae8eee760a6c6a8baf8. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QM4TW2303566.
  date published: 2026-07-30T03:35:13Z
audio: I de många valens land
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  additional property: Tempo (BPM)
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  additional property: Danceability
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  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.912
  additional property: Instrumentalness
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.189
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.901
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: QM4TW2303566
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2303566

Havsmelodi
type: MusicRecording
duration: PT5M23S
duration ms: 323361
explicit: false
by artist: Amanda Ginsburg
by artist: Askanäs Kammarkvartett
by artist: Filip Ekestubbe
by artist: Ludvig Eriksson
by artist: Ludwig Gustavsson
in album: Vi gjorde det igen
  type: MusicAlbum
  date published: 2023-02-17
popularity: 4
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf6b96544b119df6ccc9ee5b414c41d8de0e2d9817af7d5362d0530d28003cd5. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/SEVOZ2201501.
  date published: 2026-07-30T12:06:10Z
audio: Havsmelodi
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 103.461
  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
    type: PropertyValue
    value: 0.109
  additional property: Valence (Positivity)
    type: PropertyValue
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    type: PropertyValue
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isrc code: SEVOZ2201501
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEVOZ2201501

Ett minne blott
type: MusicRecording
duration: PT5M35S
duration ms: 335656
explicit: false
by artist: Amanda Ginsburg
by artist: Askanäs Kammarkvartett
by artist: Filip Ekestubbe
by artist: Ludvig Eriksson
by artist: Ludwig Gustavsson
in album: Vi gjorde det igen
  type: MusicAlbum
  date published: 2023-02-17
popularity: 2
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb43308543f0a0c223e960de48b27a6bfe18d5eaec10b2870debba26068c2171. 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/QM4TW2303573.
  date published: 2026-07-31T17:29:52Z
audio: Ett minne blott
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Key Name
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isrc code: QM4TW2303573
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2303573

För bra för att vara sant
type: MusicRecording
duration: PT4M24S
duration ms: 264337
explicit: false
by artist: Amanda Ginsburg
by artist: Askanäs Kammarkvartett
by artist: Filip Ekestubbe
by artist: Ludvig Eriksson
by artist: Ludwig Gustavsson
in album: Vi gjorde det igen
  type: MusicAlbum
  date published: 2023-02-17
popularity: 4
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff1f51a6c70e95955d117efc02ecb8a16058cc3580bf2a5c96e774cd7d86999b. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/QM4TW2303580.
  date published: 2026-07-31T05:48:18Z
audio: För bra för att vara sant
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Key Name
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isrc code: QM4TW2303580
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2303580

En midsommardröm
type: MusicRecording
duration: PT4M49S
duration ms: 289560
explicit: false
by artist: Amanda Ginsburg
by artist: Filip Ekestubbe
by artist: Anders Fjeldsted
by artist: Snorre Kirk
by artist: Askanäs Kammarkvartett
in album: En midsommardröm
  type: MusicAlbum
  date published: 2025-06-16
isrc code: SEVOZ2500601
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEVOZ2500601
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:53:06Z
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0c32458a251def44e243467d81104ef76e0a58abc978ad1273b721b144d73c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/SEVOZ2500601.
  date published: 2026-06-13T12:53:06Z
audio: En midsommardröm
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  additional property: Tempo (BPM)
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