Katarina Ewerlöf
type: MusicGroup
description: Annette Elsa Katarina Ewerlöf (born 28 December 1959) is a Swedish actress. She began acting in theater when she was 13 years old at Vår teater, a children's theater in Stockholm. Ewerlöf was educated
popularity: 18
followers: 345
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x04ac5d5012ec9345a791408d3fe308d2fb3bc98b2de121124c2b68fe8f5dc422
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953704
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953704
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7a59911d-babd-49c9-a146-a500a241abad.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7a59911d-babd-49c9-a146-a500a241abad.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7a59911d-babd-49c9-a146-a500a241abad
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T22:58:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x04ac5d5012ec9345a791408d3fe308d2fb3bc98b2de121124c2b68fe8f5dc422","name":"Katarina Ewerlöf","registered_at":"2026-06-14T17:18:40Z","symbol":"NIM0522277","token_address":"0xe0f678976386e823e07fae09454e6750fee8bc8e","type":"artist","uuid":"7a59911d-babd-49c9-a146-a500a241abad"}
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 0x04ac5d5012ec9345a791408d3fe308d2fb3bc98b2de121124c2b68fe8f5dc422. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7a59911d-babd-49c9-a146-a500a241abad.json and https://artists.proofprofile.net/proofs/artist/7a59911d-babd-49c9-a146-a500a241abad.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T22:58:38Z
  text: {"copyright_id":"0x04ac5d5012ec9345a791408d3fe308d2fb3bc98b2de121124c2b68fe8f5dc422","name":"Katarina Ewerlöf","registered_at":"2026-06-14T17:18:40Z","symbol":"NIM0522277","token_address":"0xe0f678976386e823e07fae09454e6750fee8bc8e","type":"artist","uuid":"7a59911d-babd-49c9-a146-a500a241abad"}
album: Luddis busfrö!
  type: MusicAlbum
  date published: 1993
album: Spindeln Spralle
  type: MusicAlbum
  date published: 1993
album: Jim möter Herr Älg
  type: MusicAlbum
  date published: 1993
album: Lilla Lina Kanin på tivoli
  type: MusicAlbum
  date published: 1993
album: Grodan Gunnar
  type: MusicAlbum
  date published: 1993
album: NillNalle
  type: MusicAlbum
  date published: 1993
album: Julestjärnan
  type: MusicAlbum
  date published: 1993
album: Regnbågen
  type: MusicAlbum
  date published: 1993
album: Julgranen
  type: MusicAlbum
  date published: 1993
album: Tomtens slädfärd
  type: MusicAlbum
  date published: 1993
album: Sagor och sånger i juletid 2 (feat. Sarah Hashmi)
  type: MusicAlbum
  date published: 1993-04-25
album: Sagor och sånger i juletid 1 (feat. Vincent Hashmi)
  type: MusicAlbum
  date published: 1993-04-25
album: Några visor och en saga 2
  type: MusicAlbum
  date published: 1993-04-25
  track: Min hatt
    type: MusicRecording
    duration: PT0M50S
    duration ms: 50733
    explicit: false
    by artist: Katarina Ewerlöf
    in album: Några visor och en saga 2
      type: MusicAlbum
      date published: 1993-04-25
    isrc code: SEBMA1600734
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T20:35:27+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd063df847c6b59d7f456c82eed5c700768da1a6fcc8247f697ec268179f96c6c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958607
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958607
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEBMA1600734
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T21:01:11Z
    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 0xd063df847c6b59d7f456c82eed5c700768da1a6fcc8247f697ec268179f96c6c. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/SEBMA1600734.
      date published: 2026-07-18T21:01:11Z
    audio: Min hatt
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 152.025
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.892
      additional property: Energy
        type: PropertyValue
        value: 0.095
      additional property: Speechiness
        type: PropertyValue
        value: 0.18
      additional property: Acousticness
        type: PropertyValue
        value: 0.38
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.092
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.962
      additional property: Loudness (dB)
        type: PropertyValue
        value: -18.019
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Törnrosa
    type: MusicRecording
    duration: PT2M31S
    duration ms: 151240
    explicit: false
    by artist: Katarina Ewerlöf
    in album: Några visor och en saga 2
      type: MusicAlbum
      date published: 1993-04-25
    isrc code: SEBMA1600736
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T12:29:31+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2e82252784d99b7e5ac9704828f5c8a008d0c2bda07e2dd8bc8a567e8f379587
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958415
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958415
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEBMA1600736
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T12:50:13Z
    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 0x2e82252784d99b7e5ac9704828f5c8a008d0c2bda07e2dd8bc8a567e8f379587. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/SEBMA1600736.
      date published: 2026-07-17T12:50:13Z
    audio: Törnrosa
album: Kalaskul 2
album: Några visor och en saga 1
album: Några visor och en saga 3
album: Dockskåpsteatern 2
album: Kalaskul 1
track: Samhallsvals

Törnrosa
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 88.016
additional property: Musical Key
  type: PropertyValue
  value: 0
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.915
additional property: Energy
  type: PropertyValue
  value: 0.323
additional property: Speechiness
  type: PropertyValue
  value: 0.096
additional property: Acousticness
  type: PropertyValue
  value: 0.266
additional property: Instrumentalness
  type: PropertyValue
  value: 0.001
additional property: Liveness
  type: PropertyValue
  value: 0.087
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.766
additional property: Loudness (dB)
  type: PropertyValue
  value: -16.089
additional property: Key Name
  type: PropertyValue
  value: C
additional property: Mode Name
  type: PropertyValue
  value: Major

Kalaskul 2
type: MusicAlbum
date published: 1993-07-13
track: Björnen sover
  type: MusicRecording
  duration: PT0M56S
  duration ms: 56813
  explicit: false
  by artist: Katarina Ewerlöf
  in album: Kalaskul 2
    type: MusicAlbum
    date published: 1993-07-13
  isrc code: SEBGA1601821
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T10:33:55+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x59431b453b2dd3525d5f8ab11f14aa27baac31dbba3fc3bf7a9035538547ebb5
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958401
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958401
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEBGA1601821
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T11:10:25Z
  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 0x59431b453b2dd3525d5f8ab11f14aa27baac31dbba3fc3bf7a9035538547ebb5. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/SEBGA1601821.
    date published: 2026-07-17T11:10:25Z
  audio: Björnen sover
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 163.878
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.773
    additional property: Energy
      type: PropertyValue
      value: 0.197
    additional property: Speechiness
      type: PropertyValue
      value: 0.082
    additional property: Acousticness
      type: PropertyValue
      value: 0.965
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.285
    additional property: Liveness
      type: PropertyValue
      value: 0.1
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.586
    additional property: Loudness (dB)
      type: PropertyValue
      value: -20.997
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Gruvan - Hej hå
  type: MusicRecording
  duration: PT1M17S
  duration ms: 77866
  explicit: false
  by artist: Katarina Ewerlöf
  in album: Kalaskul 2
    type: MusicAlbum
    date published: 1993-07-13
  isrc code: SEBGA1601827
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T16:10:49+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2495d0abb0978c2afe3ef555495b62e411f76d31c88a9cbfca93e387a9cd1c0e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958170
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958170
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEBGA1601827
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-15T16:21:50Z
  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 0x2495d0abb0978c2afe3ef555495b62e411f76d31c88a9cbfca93e387a9cd1c0e. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/SEBGA1601827.
    date published: 2026-07-15T16:21:50Z
  audio: Gruvan - Hej hå
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 91.963
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.876
    additional property: Energy
      type: PropertyValue
      value: 0.398
    additional property: Speechiness
      type: PropertyValue
      value: 0.082
    additional property: Acousticness
      type: PropertyValue
      value: 0.653
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.094
    additional property: Liveness
      type: PropertyValue
      value: 0.042
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.813
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.332
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major

Några visor och en saga 1
type: MusicAlbum
date published: 1993-07-13
track: Små grodorna
  type: MusicRecording
  duration: PT0M45S
  duration ms: 45400
  explicit: false
  by artist: Katarina Ewerlöf
  in album: Några visor och en saga 1
    type: MusicAlbum
    date published: 1993-07-13
  isrc code: SEBGA1601690
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T15:45:15+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x794379793833d2f7229b855f41ed0693603d920f76c7e01d5424bf2ed6ea0986
  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/SEBGA1601690
  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 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 0x794379793833d2f7229b855f41ed0693603d920f76c7e01d5424bf2ed6ea0986. 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/SEBGA1601690.
    date published: 2026-07-05T01:12:41Z
  audio: Små grodorna
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 104.006
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.918
    additional property: Energy
      type: PropertyValue
      value: 0.338
    additional property: Speechiness
      type: PropertyValue
      value: 0.135
    additional property: Acousticness
      type: PropertyValue
      value: 0.205
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.093
    additional property: Liveness
      type: PropertyValue
      value: 0.118
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.976
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.691
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Ro ro till Fiskeskär
  type: MusicRecording
  duration: PT0M45S
  duration ms: 45800
  explicit: false
  by artist: Katarina Ewerlöf
  in album: Några visor och en saga 1
    type: MusicAlbum
    date published: 1993-07-13
  isrc code: SEBGA1601691
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-19T07:30:22+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8e38286db12f044704921cee7419f3afa7ac705ee9502c7e36c390c06cf59f70
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958696
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958696
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEBGA1601691
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-19T07:45:31Z
  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 0x8e38286db12f044704921cee7419f3afa7ac705ee9502c7e36c390c06cf59f70. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/SEBGA1601691.
    date published: 2026-07-19T07:45:31Z
  audio: Ro ro till Fiskeskär
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 94.014
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.926
    additional property: Energy
      type: PropertyValue
      value: 0.569
    additional property: Speechiness
      type: PropertyValue
      value: 0.087
    additional property: Acousticness
      type: PropertyValue
      value: 0.63
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.777
    additional property: Liveness
      type: PropertyValue
      value: 0.094
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.548
    additional property: Loudness (dB)
      type: PropertyValue
      value: -15.238
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Bonden och kråkan
  type: MusicRecording
  duration: PT1M52S
  duration ms: 112986
  explicit: false
  by artist: Katarina Ewerlöf
  in album: Några visor och en saga 1
    type: MusicAlbum
    date published: 1993-07-13
  isrc code: SEBGA1601693
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T08:22:13+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x88d383bb98f1dc8cc1b459d568675f929471ebc75869853516fdca4a4fa0e644
  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/SEBGA1601693
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Bonden och kråkan

OTSTimestamp
type: PropertyValue
value: 2026-07-05T10:01:46Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d383bb98f1dc8cc1b459d568675f929471ebc75869853516fdca4a4fa0e644. 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/SEBGA1601693.
date published: 2026-07-05T10:01:46Z

Bonden och kråkan
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 87.531
additional property: Musical Key
  type: PropertyValue
  value: 0
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.786
additional property: Energy
  type: PropertyValue
  value: 0.464
additional property: Speechiness
  type: PropertyValue
  value: 0.043
additional property: Acousticness
  type: PropertyValue
  value: 0.673
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.083
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.963
additional property: Loudness (dB)
  type: PropertyValue
  value: -13.122
additional property: Key Name
  type: PropertyValue
  value: C
additional property: Mode Name
  type: PropertyValue
  value: Major

Några visor och en saga 3
type: MusicAlbum
date published: 1993-07-13
track: Lilla snigel
  type: MusicRecording
  duration: PT0M35S
  duration ms: 35213
  explicit: false
  by artist: Katarina Ewerlöf
  in album: Några visor och en saga 3
    type: MusicAlbum
    date published: 1993-07-13
  isrc code: SEBGA1601705
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-13T14:31:06+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x253d16c6191562bd9df55d69160775ecf6b2dc8d51a93226286b7e929248c44d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957863
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957863
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEBGA1601705
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-13T14:41:15Z
  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 0x253d16c6191562bd9df55d69160775ecf6b2dc8d51a93226286b7e929248c44d. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/SEBGA1601705.
    date published: 2026-07-13T14:41:15Z
  audio: Lilla snigel
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 93.92
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.92
    additional property: Energy
      type: PropertyValue
      value: 0.409
    additional property: Speechiness
      type: PropertyValue
      value: 0.193
    additional property: Acousticness
      type: PropertyValue
      value: 0.686
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.25
    additional property: Liveness
      type: PropertyValue
      value: 0.095
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.421
    additional property: Loudness (dB)
      type: PropertyValue
      value: -15.249
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

Dockskåpsteatern 2
type: MusicAlbum
date published: 1993-07-13
track: Tummeliten, del 2
  type: MusicRecording
  duration: PT1M30S
  duration ms: 90680
  explicit: false
  by artist: Katarina Ewerlöf
  in album: Dockskåpsteatern 2
    type: MusicAlbum
    date published: 1993-07-13
  isrc code: SEBGA1601625
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-21T06:54:28+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x3635c9c669bd44c87d2e5bb289703f775aa14786253c618cb0a5ab60125ef171
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958980
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958980
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEBGA1601625
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-21T07:04:12Z
  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 0x3635c9c669bd44c87d2e5bb289703f775aa14786253c618cb0a5ab60125ef171. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/SEBGA1601625.
    date published: 2026-07-21T07:04:12Z
  audio: Tummeliten, del 2
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 118.07
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.73
    additional property: Energy
      type: PropertyValue
      value: 0.173
    additional property: Speechiness
      type: PropertyValue
      value: 0.905
    additional property: Acousticness
      type: PropertyValue
      value: 0.676
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.159
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.126
    additional property: Loudness (dB)
      type: PropertyValue
      value: -21.843
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major

Kalaskul 1
type: MusicAlbum
date published: 1993-07-13
track: Spindeln Spralle, del 7
  type: MusicRecording
  duration: PT1M20S
  duration ms: 80146
  explicit: false
  by artist: Katarina Ewerlöf
  in album: Kalaskul 1
    type: MusicAlbum
    date published: 1993-07-13
  isrc code: SEBGA1601796
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-21T17:03:21+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x7e956a54fbb4504a50ed29770b0e594b548f2ba728598994dfeab0dbb2d32525
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 959043
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/959043
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEBGA1601796
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-21T18:40:26Z
  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 0x7e956a54fbb4504a50ed29770b0e594b548f2ba728598994dfeab0dbb2d32525. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/SEBGA1601796.
    date published: 2026-07-21T18:40:26Z
  audio: Spindeln Spralle, del 7
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 103.616
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.744
    additional property: Energy
      type: PropertyValue
      value: 0.285
    additional property: Speechiness
      type: PropertyValue
      value: 0.907
    additional property: Acousticness
      type: PropertyValue
      value: 0.138
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.121
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.37
    additional property: Loudness (dB)
      type: PropertyValue
      value: -23.021
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Vem tar hand om hösten
  type: MusicRecording
  duration: PT1M8S
  duration ms: 68586
  explicit: false
  by artist: Katarina Ewerlöf
  in album: Kalaskul 1
    type: MusicAlbum
    date published: 1993-07-13
  isrc code: SEBGA1601801
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T11:36:54+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x77ca37a6549020eb6c8f2b1aa9294249bbc802213f70117b9d9133b8cd105917
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958407
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958407
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEBGA1601801
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T12:08:48Z
  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 0x77ca37a6549020eb6c8f2b1aa9294249bbc802213f70117b9d9133b8cd105917. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/SEBGA1601801.
    date published: 2026-07-17T12:08:48Z
  audio: Vem tar hand om hösten
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 115.979
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.802
    additional property: Energy
      type: PropertyValue
      value: 0.351
    additional property: Speechiness
      type: PropertyValue
      value: 0.073
    additional property: Acousticness
      type: PropertyValue
      value: 0.396
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.227
    additional property: Liveness
      type: PropertyValue
      value: 0.151
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.975
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.384
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Lätt på tå
  type: MusicRecording
  duration: PT1M15S
  duration ms: 75533
  explicit: false
  by artist: Katarina Ewerlöf
  in album: Kalaskul 1
    type: MusicAlbum
    date published: 1993-07-13
  isrc code: SEBGA1601803
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T23:28:16+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa4d4a04a187bdb606c7b16259cb20e9f81ae43c42768284278b591426c9de3ab
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956634
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956634
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEBGA1601803
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Lätt på tå
track: Mugge Bigge

OTSTimestamp
type: PropertyValue
value: 2026-07-04T10:04:33Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4d4a04a187bdb606c7b16259cb20e9f81ae43c42768284278b591426c9de3ab. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SEBGA1601803.
date published: 2026-07-04T10:04:33Z

Lätt på tå
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 203.923
additional property: Musical Key
  type: PropertyValue
  value: 0
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.761
additional property: Energy
  type: PropertyValue
  value: 0.28
additional property: Speechiness
  type: PropertyValue
  value: 0.825
additional property: Acousticness
  type: PropertyValue
  value: 0.553
additional property: Instrumentalness
  type: PropertyValue
  value: 0.001
additional property: Liveness
  type: PropertyValue
  value: 0.077
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.375
additional property: Loudness (dB)
  type: PropertyValue
  value: -16.7
additional property: Key Name
  type: PropertyValue
  value: C
additional property: Mode Name
  type: PropertyValue
  value: Major

Mugge Bigge
type: MusicRecording
duration: PT1M24S
duration ms: 84946
explicit: false
by artist: Katarina Ewerlöf
in album: Kalaskul 1
  type: MusicAlbum
  date published: 1993-07-13
isrc code: SEBGA1601807
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-18T12:17:03+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfc821f25ebe911cfdc8e1446b3caa2558c572d9b5aa6d3552f2f6dcc81e2dee4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958547
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958547
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEBGA1601807
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-18T12:44:05Z
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 0xfc821f25ebe911cfdc8e1446b3caa2558c572d9b5aa6d3552f2f6dcc81e2dee4. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/SEBGA1601807.
  date published: 2026-07-18T12:44:05Z
audio: Mugge Bigge
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 118.114
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.957
  additional property: Energy
    type: PropertyValue
    value: 0.467
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.419
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.08
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.878
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.875
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Samhallsvals
type: MusicRecording
duration: PT3M30S
duration ms: 210986
explicit: false
by artist: Katarina Ewerlöf
in album: Musikalen - Livet är en schlager
  type: MusicAlbum
  date published: 2015-01-28
isrc code: SEUM71402068
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T00:44:32+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd6ce86afd829f8ed9a672796be1ab0fbfc5b1f4eefceddebc2267449330069ba
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960181
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960181
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEUM71402068
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T00:53:20Z
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 0xd6ce86afd829f8ed9a672796be1ab0fbfc5b1f4eefceddebc2267449330069ba. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/SEUM71402068.
  date published: 2026-07-30T00:53:20Z
audio: Samhallsvals
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 141.035
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.571
  additional property: Energy
    type: PropertyValue
    value: 0.394
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.574
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.065
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.492
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.32
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
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