Mattias Rosén
type: MusicGroup
genre: neoclassical
popularity: 6
followers: 34
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x861ef10520f8f8ec2440a0586d9035f8a49291777de630e55da66ab42adeaa84
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4b47f028-cb84-4ae8-b83f-b4b664933964.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4b47f028-cb84-4ae8-b83f-b4b664933964.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4b47f028-cb84-4ae8-b83f-b4b664933964
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x861ef10520f8f8ec2440a0586d9035f8a49291777de630e55da66ab42adeaa84","name":"Mattias Rosén","registered_at":"2026-06-16T15:46:34Z","symbol":"NIM1099350","token_address":"0x0c69ce09862ca59a2d14580fea19ba5ef54fe00c","type":"artist","uuid":"4b47f028-cb84-4ae8-b83f-b4b664933964"}
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 0x861ef10520f8f8ec2440a0586d9035f8a49291777de630e55da66ab42adeaa84. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4b47f028-cb84-4ae8-b83f-b4b664933964.json and https://artists.proofprofile.net/proofs/artist/4b47f028-cb84-4ae8-b83f-b4b664933964.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x861ef10520f8f8ec2440a0586d9035f8a49291777de630e55da66ab42adeaa84","name":"Mattias Rosén","registered_at":"2026-06-16T15:46:34Z","symbol":"NIM1099350","token_address":"0x0c69ce09862ca59a2d14580fea19ba5ef54fe00c","type":"artist","uuid":"4b47f028-cb84-4ae8-b83f-b4b664933964"}
album: En bit i taget
  type: MusicAlbum
  date published: 2022-08-09
  track: Maya
    type: MusicRecording
    duration: PT3M59S
    duration ms: 239513
    explicit: false
    by artist: Mattias Rosén
    in album: En bit i taget
      type: MusicAlbum
      date published: 2022-08-09
    genre: neoclassical
    isrc code: QZMER2202769
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T21:08:58+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc0fe52900862b88e5c9d2715776de056a14c080440b6db9890f747252bfe144d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956856
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956856
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMER2202769
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:25:57Z
    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 0xc0fe52900862b88e5c9d2715776de056a14c080440b6db9890f747252bfe144d. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZMER2202769.
      date published: 2026-07-06T01:25:57Z
    audio: Maya
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 122.473
      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: 0.47
      additional property: Energy
        type: PropertyValue
        value: 0.109
      additional property: Speechiness
        type: PropertyValue
        value: 0.051
      additional property: Acousticness
        type: PropertyValue
        value: 0.993
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.897
      additional property: Liveness
        type: PropertyValue
        value: 0.083
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.194
      additional property: Loudness (dB)
        type: PropertyValue
        value: -22.148
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Tango i C-moll - En sån som du
  type: MusicAlbum
  date published: 2022-08-09
album: Hope (Jingel till Savannah & Jennies podd)
  type: MusicAlbum
  date published: 2024-05-22
album: TILLSAMMANS - Under stjärnorna är vi alla lika
  type: MusicAlbum
  date published: 2024-05-29
album: Two Songs
  type: MusicAlbum
  date published: 2024-09-06
  track: Wanderings
    type: MusicRecording
    duration: PT1M26S
    duration ms: 86276
    explicit: false
    by artist: Mattias Rosén
    in album: Two Songs
      type: MusicAlbum
      date published: 2024-09-06
    genre: neoclassical
    isrc code: SEVOZ2304902
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T04:06:57+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2457326954bf0cc31273207798f4802bf71e5aa24e01200e78d548e09b7e647a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958965
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958965
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEVOZ2304902
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T04:29:05Z
    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 0x2457326954bf0cc31273207798f4802bf71e5aa24e01200e78d548e09b7e647a. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/SEVOZ2304902.
      date published: 2026-07-21T04:29:05Z
    audio: Wanderings
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 74.906
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.513
      additional property: Energy
        type: PropertyValue
        value: 0.019
      additional property: Speechiness
        type: PropertyValue
        value: 0.064
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Acousticness
type: PropertyValue
value: 0.991

Instrumentalness
type: PropertyValue
value: 0.948

Liveness
type: PropertyValue
value: 0.166

Valence (Positivity)
type: PropertyValue
value: 0.314

Loudness (dB)
type: PropertyValue
value: -20.72

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Minor