Lasse Matthiessen
type: MusicGroup
popularity: 13
followers: 2706
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8fdfb3bee07d34602f454f853451d5c409202f5b6efa263e4805780c7330a638
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953625
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953625
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2717cd45-68f2-4ff0-9832-2d2706938816.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2717cd45-68f2-4ff0-9832-2d2706938816.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2717cd45-68f2-4ff0-9832-2d2706938816
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T11:37:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8fdfb3bee07d34602f454f853451d5c409202f5b6efa263e4805780c7330a638","name":"Lasse Matthiessen","registered_at":"2026-06-14T08:35:52Z","symbol":"NIM0397538","token_address":"0x4ddb121fd9fddffde80a0504cd66dcde231fbbbb","type":"artist","uuid":"2717cd45-68f2-4ff0-9832-2d2706938816"}
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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fdfb3bee07d34602f454f853451d5c409202f5b6efa263e4805780c7330a638. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2717cd45-68f2-4ff0-9832-2d2706938816.json and https://artists.proofprofile.net/proofs/artist/2717cd45-68f2-4ff0-9832-2d2706938816.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T11:41:45Z
  text: {"copyright_id":"0x8fdfb3bee07d34602f454f853451d5c409202f5b6efa263e4805780c7330a638","name":"Lasse Matthiessen","registered_at":"2026-06-14T08:35:52Z","symbol":"NIM0397538","token_address":"0x4ddb121fd9fddffde80a0504cd66dcde231fbbbb","type":"artist","uuid":"2717cd45-68f2-4ff0-9832-2d2706938816"}
album: Dead Man Waltz
  type: MusicAlbum
  date published: 2012-04-20
album: Dead Man Waltz
  type: MusicAlbum
  date published: 2012-04-20
album: Carry Me Down
  type: MusicAlbum
  date published: 2013-11-01
album: Carry Me Down
  type: MusicAlbum
  date published: 2013-11-01
album: Carry Me Down
  type: MusicAlbum
  date published: 2014-01-13
album: Wildfires
  type: MusicAlbum
  date published: 2014-09-12
album: WinterGut
  type: MusicAlbum
  date published: 2015-02-06
album: Sorte Søer
  type: MusicAlbum
  date published: 2017-04-19
album: Sorte Søer
  type: MusicAlbum
  date published: 2017-04-19
album: Broken Choir
  type: MusicAlbum
  date published: 2017-10-06
album: Broken Choir
  type: MusicAlbum
  date published: 2017-10-06
album: When We Collided (Single edit)
  type: MusicAlbum
  date published: 2017-10-06
album: When We Collided
  type: MusicAlbum
  date published: 2017-10-06
album: When We Collided
  type: MusicAlbum
  date published: 2017-11-10
album: When We Collided
  type: MusicAlbum
  date published: 2017-11-10
  track: When We Collided
    type: MusicRecording
    duration: PT4M16S
    duration ms: 256169
    explicit: false
    by artist: Lasse Matthiessen
    in album: When We Collided
      type: MusicAlbum
      date published: 2017-11-10
    isrc code: DKGX61700602
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T19:19:19+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x1fd39b25c4b2e644e146c71291708ae321bfb3fc9e5d13b7b65ea4ebb3a14813
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958316
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958316
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DKGX61700602
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T19:42:29Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd39b25c4b2e644e146c71291708ae321bfb3fc9e5d13b7b65ea4ebb3a14813. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/DKGX61700602.
      date published: 2026-07-16T19:42:29Z
    audio: When We Collided
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 91.456
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.408
      additional property: Energy
        type: PropertyValue
        value: 0.222
      additional property: Speechiness
        type: PropertyValue
        value: 0.031
      additional property: Acousticness
        type: PropertyValue
        value: 0.864
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.01
      additional property: Liveness
        type: PropertyValue
        value: 0.111
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.147
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.531
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Dancing with Air
  type: MusicAlbum
  date published: 2021-09-17
album: Reed
  type: MusicAlbum
  date published: 2021-10-15
  track: Reed
    type: MusicRecording
    duration: PT3M30S
    duration ms: 210154
    explicit: false
    by artist: Lasse Matthiessen
    in album: Reed
      type: MusicAlbum
      date published: 2021-10-15
    isrc code: DKGX62100103
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T14:24:11+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xdf5b424711d418fa3da3f20eb09fa720de2935c21fa9fd06a892a6b251df29b5
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956826
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956826
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DKGX62100103
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: Reed
album: Coordinates Remain
album: Closer
album: Emotional
album: Ocean
album: Dreams Don't Make Noise
album: Dreams Don't Make Noise (Duet)
album: Night Train

OTSTimestamp
type: PropertyValue
value: 2026-07-05T19:27:56Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf5b424711d418fa3da3f20eb09fa720de2935c21fa9fd06a892a6b251df29b5. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DKGX62100103.
date published: 2026-07-05T19:27:56Z

Reed
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 76.959
additional property: Musical Key
  type: PropertyValue
  value: 9
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.569
additional property: Energy
  type: PropertyValue
  value: 0.335
additional property: Speechiness
  type: PropertyValue
  value: 0.029
additional property: Acousticness
  type: PropertyValue
  value: 0.665
additional property: Instrumentalness
  type: PropertyValue
  value: 0.037
additional property: Liveness
  type: PropertyValue
  value: 0.11
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.275
additional property: Loudness (dB)
  type: PropertyValue
  value: -14.633
additional property: Key Name
  type: PropertyValue
  value: A
additional property: Mode Name
  type: PropertyValue
  value: Major

Coordinates Remain
type: MusicAlbum
date published: 2021-11-19

Closer
type: MusicAlbum
date published: 2021-12-17

Emotional
type: MusicAlbum
date published: 2022-07-01

Ocean
type: MusicAlbum
date published: 2022-08-12

Dreams Don't Make Noise
type: MusicAlbum
date published: 2022-09-30

Dreams Don't Make Noise
type: MusicAlbum
date published: 2022-11-04

Dreams Don't Make Noise
type: MusicAlbum
date published: 2022-11-04
track: Reed
  type: MusicRecording
  duration: PT3M30S
  duration ms: 210154
  explicit: false
  by artist: Lasse Matthiessen
  in album: Dreams Don't Make Noise
    type: MusicAlbum
    date published: 2022-11-04
  isrc code: DKGX62100103
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T14:24:11+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xdf5b424711d418fa3da3f20eb09fa720de2935c21fa9fd06a892a6b251df29b5
  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/DKGX62100103
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf5b424711d418fa3da3f20eb09fa720de2935c21fa9fd06a892a6b251df29b5. 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/DKGX62100103.
    date published: 2026-07-05T01:12:41Z
  audio: Reed
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 76.959
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.569
    additional property: Energy
      type: PropertyValue
      value: 0.335
    additional property: Speechiness
      type: PropertyValue
      value: 0.029
    additional property: Acousticness
      type: PropertyValue
      value: 0.665
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.037
    additional property: Liveness
      type: PropertyValue
      value: 0.11
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.275
    additional property: Loudness (dB)
      type: PropertyValue
      value: -14.633
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major

Dreams Don't Make Noise
type: MusicAlbum
date published: 2023-08-18

Dreams Don't Make Noise (Duet)
type: MusicAlbum
date published: 2023-08-18

Night Train
type: MusicAlbum
date published: 2025-10-24