Vilhelm Ersmark
type: MusicGroup
genre: swedish ballads
popularity: 4
followers: 47
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x085fda53f6c1891297d721581816196b3a66bd649c60440b9ec098068956c70c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954647
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954647
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d6c51a54-42fe-4354-a6cc-42154254fb5a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d6c51a54-42fe-4354-a6cc-42154254fb5a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d6c51a54-42fe-4354-a6cc-42154254fb5a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T04:36:58Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x085fda53f6c1891297d721581816196b3a66bd649c60440b9ec098068956c70c","name":"Vilhelm Ersmark","registered_at":"2026-06-21T02:50:54Z","symbol":"NIM1797215","token_address":"0xaa1cd4291ab50b0093b97ffe56a004513eed951a","type":"artist","uuid":"d6c51a54-42fe-4354-a6cc-42154254fb5a"}
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 0x085fda53f6c1891297d721581816196b3a66bd649c60440b9ec098068956c70c. Chain 2 (Bitcoin): anchored in block 954647 (2026-06-21T04:36:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d6c51a54-42fe-4354-a6cc-42154254fb5a.json and https://artists.proofprofile.net/proofs/artist/d6c51a54-42fe-4354-a6cc-42154254fb5a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T04:36:58Z
  text: {"copyright_id":"0x085fda53f6c1891297d721581816196b3a66bd649c60440b9ec098068956c70c","name":"Vilhelm Ersmark","registered_at":"2026-06-21T02:50:54Z","symbol":"NIM1797215","token_address":"0xaa1cd4291ab50b0093b97ffe56a004513eed951a","type":"artist","uuid":"d6c51a54-42fe-4354-a6cc-42154254fb5a"}
album: Rune Lindström 14 Visor/Songs
  type: MusicAlbum
  date published: 2014-10-30
album: Rune Lindström 14 Visor/Songs
  type: MusicAlbum
  date published: 2014-10-30
album: Rune Lindström 14 Visor/Songs
  type: MusicAlbum
  date published: 2014-10-30
album: Penny Lane
  type: MusicAlbum
  date published: 2020-04-22
album: Rune Lindström (14 Visor / Songs)
  type: MusicAlbum
  date published: 2022-07-06
  track: Visa i midsommartid
    type: MusicRecording
    duration: PT3M36S
    duration ms: 216346
    explicit: false
    by artist: Vilhelm Ersmark
    in album: Rune Lindström (14 Visor / Songs)
      type: MusicAlbum
      date published: 2022-07-06
    genre: swedish ballads
    isrc code: SE3OH1411747
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T03:24:20+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd9535ed97c146aa54b0983f165b6a2c82ba25f36d41ff5546a781939610ba3e2
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958484
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958484
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE3OH1411747
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T03:34:53Z
    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 0xd9535ed97c146aa54b0983f165b6a2c82ba25f36d41ff5546a781939610ba3e2. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/SE3OH1411747.
      date published: 2026-07-18T03:34:53Z
    audio: Visa i midsommartid
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 110.166
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.587
      additional property: Energy
        type: PropertyValue
        value: 0.159
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0.816
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.115
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.103
      additional property: Loudness (dB)
        type: PropertyValue
        value: -15.37
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Saphoria kallar (Leo Bell soundtrack)
  type: MusicAlbum
  date published: 2022-12-16
album: Julrock, Redo för jul
  type: MusicAlbum
  date published: 2024-11-28