Karzan Mahmood
type: MusicGroup
popularity: 3
followers: 10
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf04a9a817e1bcbff2f03de41a44cc46a8a1f05310d682e37128d35b2bd6ead2f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953936
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953936
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1f6af4c4-6ae2-431a-9cd3-09fa7ce53d7a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1f6af4c4-6ae2-431a-9cd3-09fa7ce53d7a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1f6af4c4-6ae2-431a-9cd3-09fa7ce53d7a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T11:24:55Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf04a9a817e1bcbff2f03de41a44cc46a8a1f05310d682e37128d35b2bd6ead2f","name":"Karzan Mahmood","registered_at":"2026-06-16T00:47:28Z","symbol":"NIM0884695","token_address":"0x29d4de9a9dae3134eb6cf428385f8c7412bd0d2a","type":"artist","uuid":"1f6af4c4-6ae2-431a-9cd3-09fa7ce53d7a"}
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 0xf04a9a817e1bcbff2f03de41a44cc46a8a1f05310d682e37128d35b2bd6ead2f. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1f6af4c4-6ae2-431a-9cd3-09fa7ce53d7a.json and https://artists.proofprofile.net/proofs/artist/1f6af4c4-6ae2-431a-9cd3-09fa7ce53d7a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0xf04a9a817e1bcbff2f03de41a44cc46a8a1f05310d682e37128d35b2bd6ead2f","name":"Karzan Mahmood","registered_at":"2026-06-16T00:47:28Z","symbol":"NIM0884695","token_address":"0x29d4de9a9dae3134eb6cf428385f8c7412bd0d2a","type":"artist","uuid":"1f6af4c4-6ae2-431a-9cd3-09fa7ce53d7a"}
track: Elementa
  type: MusicRecording
  duration: PT5M23S
  duration ms: 323063
  explicit: false
  by artist: Jonathan Lundberg
  by artist: Hadrien Feraud
  by artist: Carl Mörner Ringström
  by artist: Kristian Kraftling
  by artist: Karzan Mahmood
  in album: Fragments
    type: MusicAlbum
    date published: 2023-10-06
  popularity: 5
  isrc code: QZES52364183
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-25T08:56:03+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc2252e0e05547f044ddf5d72e76803535993486048460201094d7c6df6f8573d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES52364183
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  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 0xc2252e0e05547f044ddf5d72e76803535993486048460201094d7c6df6f8573d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZES52364183.
    date published: 2026-07-08T03:20:19Z
  audio: Elementa
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 124.822
    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: 0.339
    additional property: Energy
      type: PropertyValue
      value: 0.941
    additional property: Speechiness
      type: PropertyValue
      value: 0.062
    additional property: Acousticness
      type: PropertyValue
      value: 0.009
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.861
    additional property: Liveness
      type: PropertyValue
      value: 0.166
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.407
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.117
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Elementa
  type: MusicRecording
  duration: PT5M23S
  duration ms: 323063
  explicit: false
  by artist: Jonathan Lundberg
  by artist: Hadrien Feraud
  by artist: Carl Mörner Ringström
  by artist: Kristian Kraftling
  by artist: Karzan Mahmood
  in album: Elementa
    type: MusicAlbum
    date published: 2023-03-10
  isrc code: QZES52364183
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-25T08:56:03+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc2252e0e05547f044ddf5d72e76803535993486048460201094d7c6df6f8573d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956349
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956349
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES52364183
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T11:34:59Z
  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 0xc2252e0e05547f044ddf5d72e76803535993486048460201094d7c6df6f8573d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZES52364183.
    date published: 2026-07-02T11:34:59Z
  audio: Elementa
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 124.822
    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: 0.339
    additional property: Energy
      type: PropertyValue
      value: 0.941
    additional property: Speechiness
      type: PropertyValue
      value: 0.062
    additional property: Acousticness
      type: PropertyValue
      value: 0.009
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.861
    additional property: Liveness
    additional property: Valence (Positivity)
    additional property: Loudness (dB)
    additional property: Key Name
    additional property: Mode Name

Liveness
type: PropertyValue
value: 0.166

Valence (Positivity)
type: PropertyValue
value: 0.407

Loudness (dB)
type: PropertyValue
value: -11.117

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Major