Mats Erlandsson
type: MusicGroup
genre: ambient
genre: dark ambient
genre: drone
genre: experimental
popularity: 15
followers: 1925
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x17ecb110aa279f39db54a6077bda9f07e4e84d9205a560e481070f1fb171ccd3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953791
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953791
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dbb606c1-ca7c-4274-a8e3-73ad5ab95b21.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dbb606c1-ca7c-4274-a8e3-73ad5ab95b21.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dbb606c1-ca7c-4274-a8e3-73ad5ab95b21
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T13:40:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x17ecb110aa279f39db54a6077bda9f07e4e84d9205a560e481070f1fb171ccd3","name":"Mats Erlandsson","registered_at":"2026-06-15T03:44:05Z","symbol":"NIM0671511","token_address":"0x1123df24267807e96f11d31b7ece4b2ab4a904b5","type":"artist","uuid":"dbb606c1-ca7c-4274-a8e3-73ad5ab95b21"}
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 0x17ecb110aa279f39db54a6077bda9f07e4e84d9205a560e481070f1fb171ccd3. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dbb606c1-ca7c-4274-a8e3-73ad5ab95b21.json and https://artists.proofprofile.net/proofs/artist/dbb606c1-ca7c-4274-a8e3-73ad5ab95b21.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T13:40:30Z
  text: {"copyright_id":"0x17ecb110aa279f39db54a6077bda9f07e4e84d9205a560e481070f1fb171ccd3","name":"Mats Erlandsson","registered_at":"2026-06-15T03:44:05Z","symbol":"NIM0671511","token_address":"0x1123df24267807e96f11d31b7ece4b2ab4a904b5","type":"artist","uuid":"dbb606c1-ca7c-4274-a8e3-73ad5ab95b21"}
album: Selective Miracles
  type: MusicAlbum
  date published: 2016-01-05
album: Valentina Tereshkova
  type: MusicAlbum
  date published: 2016-02-26
album: Old Tears
  type: MusicAlbum
  date published: 2016-11-04
album: Valentina Tereshkova
  type: MusicAlbum
  date published: 2016-12-22
album: Selective Miracles
  type: MusicAlbum
  date published: 2016-12-30
album: Hypodermic Letters
  type: MusicAlbum
  date published: 2018-09-21
album: Minnesmärke
  type: MusicAlbum
  date published: 2020-11-06
  track: Vilja
    type: MusicRecording
    duration: PT19M8S
    duration ms: 1148186
    explicit: false
    by artist: Mats Erlandsson
    in album: Minnesmärke
      type: MusicAlbum
      date published: 2020-11-06
    genre: ambient
    genre: dark ambient
    genre: drone
    genre: experimental
    isrc code: GBHLW2003239
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T08:56:15+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x57b83f1c40e82561e7f82a7e679a437df319b70d158a6ddf968d1d9c9d15be6c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958137
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958137
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBHLW2003239
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T11:58:11Z
    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 0x57b83f1c40e82561e7f82a7e679a437df319b70d158a6ddf968d1d9c9d15be6c. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:58:11Z), 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/GBHLW2003239.
      date published: 2026-07-15T11:58:11Z
    audio: Vilja
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 137.399
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.146
      additional property: Energy
        type: PropertyValue
        value: 0.138
      additional property: Speechiness
        type: PropertyValue
        value: 0.047
      additional property: Acousticness
        type: PropertyValue
        value: 0.789
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.906
      additional property: Liveness
        type: PropertyValue
        value: 0.089
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.023
      additional property: Loudness (dB)
        type: PropertyValue
        value: -19.181
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 4-Track Guitar Music
  type: MusicAlbum
  date published: 2021-02-12
album: Gyttjans Topografi
  type: MusicAlbum
  date published: 2023-03-16
album: Glory Fades
  type: MusicAlbum
  date published: 2025-01-17