Marztr
type: MusicGroup
popularity: 17
followers: 510
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2f9e858c1116e4bccb96ff0e353534f25934a016ba23cda6e5d00a83bfe76721
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953657
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953657
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4b1e1abb-d0da-483a-a725-e298933b90c6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4b1e1abb-d0da-483a-a725-e298933b90c6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4b1e1abb-d0da-483a-a725-e298933b90c6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T16:43:25Z
additional property: OTSCanonicalRecord
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 0x2f9e858c1116e4bccb96ff0e353534f25934a016ba23cda6e5d00a83bfe76721. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4b1e1abb-d0da-483a-a725-e298933b90c6.json and https://artists.proofprofile.net/proofs/artist/4b1e1abb-d0da-483a-a725-e298933b90c6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T16:43:25Z
album: Back Round
  type: MusicAlbum
  date published: 2022-12-16
album: Me 2
  type: MusicAlbum
  date published: 2023-02-14
album: Me 2
  type: MusicAlbum
  date published: 2023-02-14
album: Moncler
  type: MusicAlbum
  date published: 2023-06-17
album: Elastic Bands
  type: MusicAlbum
  date published: 2024-06-13
album: Stressed
  type: MusicAlbum
  date published: 2024-12-20
  track: Stressed
    type: MusicRecording
    duration: PT2M24S
    duration ms: 144000
    explicit: false
    by artist: Marztr
    in album: Stressed
      type: MusicAlbum
      date published: 2024-12-20
    isrc code: QZNMZ2427886
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T17:12:29+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x333d8dc754902665586ce213579461406fbdf3f32a84e32486df4938b7892837
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958180
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958180
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNMZ2427886
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T17:59:52Z
    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 0x333d8dc754902665586ce213579461406fbdf3f32a84e32486df4938b7892837. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/QZNMZ2427886.
      date published: 2026-07-15T17:59:52Z
    audio: Stressed
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 150.066
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.79
      additional property: Energy
        type: PropertyValue
        value: 0.374
      additional property: Speechiness
        type: PropertyValue
        value: 0.371
      additional property: Acousticness
        type: PropertyValue
        value: 0.174
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.07
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.574
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.791
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Uh Huh
  type: MusicAlbum
  date published: 2025-03-24
  track: Uh Huh
    type: MusicRecording
    duration: PT1M52S
    duration ms: 112632
    explicit: false
    by artist: Marztr
    in album: Uh Huh
      type: MusicAlbum
      date published: 2025-03-24
    isrc code: QZLL92544316
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-02T21:32:59+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd16889a351d20cd05318e50b7cff447fc1f3538b33b4283fe850220abebcfe38
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956420
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956420
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZLL92544316
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T00:42:11Z
    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 0xd16889a351d20cd05318e50b7cff447fc1f3538b33b4283fe850220abebcfe38. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZLL92544316.
      date published: 2026-07-03T00:42:11Z
    audio: Uh Huh
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 145.045
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.839
      additional property: Energy
        type: PropertyValue
        value: 0.232
      additional property: Speechiness
        type: PropertyValue
        value: 0.233
      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: 0.29

Instrumentalness
type: PropertyValue
value: 0.038

Liveness
type: PropertyValue
value: 0.145

Valence (Positivity)
type: PropertyValue
value: 0.356

Loudness (dB)
type: PropertyValue
value: -13.753

Key Name
type: PropertyValue
value: C#

Mode Name
type: PropertyValue
value: Major