معتز يوسف
type: MusicGroup
popularity: 7
followers: 53
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x77a033a0c01a3bbaffcf2c30d7350b1d1f5760eb3d6e3c10a8dcc379342d011a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f1442e2f-8c5d-4717-b994-46214ff7d3f9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f1442e2f-8c5d-4717-b994-46214ff7d3f9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f1442e2f-8c5d-4717-b994-46214ff7d3f9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x77a033a0c01a3bbaffcf2c30d7350b1d1f5760eb3d6e3c10a8dcc379342d011a","name":"معتز يوسف","registered_at":"2026-06-21T12:56:07Z","symbol":"NIM1928650","token_address":"0xe6b224f07f8df6a09d842f939fcd0b8087db7352","type":"artist","uuid":"f1442e2f-8c5d-4717-b994-46214ff7d3f9"}
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 0x77a033a0c01a3bbaffcf2c30d7350b1d1f5760eb3d6e3c10a8dcc379342d011a. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f1442e2f-8c5d-4717-b994-46214ff7d3f9.json and https://artists.proofprofile.net/proofs/artist/f1442e2f-8c5d-4717-b994-46214ff7d3f9.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T13:42:37Z
  text: {"copyright_id":"0x77a033a0c01a3bbaffcf2c30d7350b1d1f5760eb3d6e3c10a8dcc379342d011a","name":"معتز يوسف","registered_at":"2026-06-21T12:56:07Z","symbol":"NIM1928650","token_address":"0xe6b224f07f8df6a09d842f939fcd0b8087db7352","type":"artist","uuid":"f1442e2f-8c5d-4717-b994-46214ff7d3f9"}
album: ما يخوفنا غير الرب
  type: MusicAlbum
  date published: 2024-12-08
  track: ما يخوفنا غير الرب
    type: MusicRecording
    duration: PT1M43S
    duration ms: 103143
    explicit: false
    by artist: معتز يوسف
    in album: ما يخوفنا غير الرب
      type: MusicAlbum
      date published: 2024-12-08
    isrc code: DGA0S2463569
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-13T00:50:46+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe6cad7a202e890f2dea0bd5ce076ffbfbbeb6d7955585994deb7c3af005dcc07
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957785
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957785
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0S2463569
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-13T01:55:31Z
    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 0xe6cad7a202e890f2dea0bd5ce076ffbfbbeb6d7955585994deb7c3af005dcc07. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0S2463569 — a six-check JSON result.
      date published: 2026-07-13T01:55:31Z
    audio: ما يخوفنا غير الرب
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 172.149
      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: 0.525
      additional property: Energy
        type: PropertyValue
        value: 0.552
      additional property: Speechiness
        type: PropertyValue
        value: 0.143
      additional property: Acousticness
        type: PropertyValue
        value: 0.793
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.314
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.367
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.159
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major