Stefan Holmlund
type: MusicGroup
genre: swedish ballads
popularity: 3
followers: 62
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcccb913b645da173140e3a274fc7cff120a4b67574762ad8acd04a6d22bba033
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954513
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9d2bfc28-9c4f-4652-9ad0-60970d6eb895.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9d2bfc28-9c4f-4652-9ad0-60970d6eb895.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9d2bfc28-9c4f-4652-9ad0-60970d6eb895
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T06:31:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcccb913b645da173140e3a274fc7cff120a4b67574762ad8acd04a6d22bba033","name":"Stefan Holmlund","registered_at":"2026-06-20T04:29:19Z","symbol":"NIM1511660","token_address":"0x8ed8bee89d07fa9f85b4bd094fba55e6c5aeda14","type":"artist","uuid":"9d2bfc28-9c4f-4652-9ad0-60970d6eb895"}
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 0xcccb913b645da173140e3a274fc7cff120a4b67574762ad8acd04a6d22bba033. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9d2bfc28-9c4f-4652-9ad0-60970d6eb895.json and https://artists.proofprofile.net/proofs/artist/9d2bfc28-9c4f-4652-9ad0-60970d6eb895.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T06:31:18Z
  text: {"copyright_id":"0xcccb913b645da173140e3a274fc7cff120a4b67574762ad8acd04a6d22bba033","name":"Stefan Holmlund","registered_at":"2026-06-20T04:29:19Z","symbol":"NIM1511660","token_address":"0x8ed8bee89d07fa9f85b4bd094fba55e6c5aeda14","type":"artist","uuid":"9d2bfc28-9c4f-4652-9ad0-60970d6eb895"}
album: Till Mamma
  type: MusicAlbum
  date published: 2011-09-06
album: Till Mamma (Med Sång Av Sarah Riedel)
  type: MusicAlbum
  date published: 2012-05-20
  track: Till Mamma - Med Sång Av Sarah Riedel
    type: MusicRecording
    duration: PT3M11S
    duration ms: 191439
    explicit: false
    by artist: Stefan Holmlund
    in album: Till Mamma (Med Sång Av Sarah Riedel)
      type: MusicAlbum
      date published: 2012-05-20
    genre: swedish ballads
    isrc code: SE22E1200401
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-24T21:24:29+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x85f3b6b5644747677a079988f61c1800a505d89ff4c6d6af0018c14aab74802e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956304
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956304
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE22E1200401
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-02T03:55:08Z
    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 0x85f3b6b5644747677a079988f61c1800a505d89ff4c6d6af0018c14aab74802e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SE22E1200401.
      date published: 2026-07-02T03:55:08Z
    audio: Till Mamma - Med Sång Av Sarah Riedel
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 141.478
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.421
      additional property: Energy
        type: PropertyValue
        value: 0.278
      additional property: Speechiness
        type: PropertyValue
        value: 0.031
      additional property: Acousticness
        type: PropertyValue
        value: 0.744
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.141
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.181
      additional property: Loudness (dB)
        type: PropertyValue
        value: -17.094
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Till Mamma
  type: MusicAlbum
  date published: 2012-05-20
album: Till Mamma
  type: MusicAlbum
  date published: 2012-05-20
album: Rainbow Train
  type: MusicAlbum
  date published: 2023-03-15
album: Jag Har En Båt (LBK 100 År)
  type: MusicAlbum
  date published: 2023-06-23