Mahmoud Nader
type: MusicGroup
popularity: 17
followers: 475
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb653b92fabad9530abe3ad4a5d4c831153b298e854e73799d6a69530c07b2043
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953704
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953704
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/78fd751d-b456-40c9-ac9d-5384ac1efcff.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/78fd751d-b456-40c9-ac9d-5384ac1efcff.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/78fd751d-b456-40c9-ac9d-5384ac1efcff
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T22:58:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb653b92fabad9530abe3ad4a5d4c831153b298e854e73799d6a69530c07b2043","name":"Mahmoud Nader","registered_at":"2026-06-14T17:07:25Z","symbol":"NIM0519592","token_address":"0x5701a4f85284085e22027c9397aad62e7a0132ed","type":"artist","uuid":"78fd751d-b456-40c9-ac9d-5384ac1efcff"}
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 0xb653b92fabad9530abe3ad4a5d4c831153b298e854e73799d6a69530c07b2043. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/78fd751d-b456-40c9-ac9d-5384ac1efcff.json and https://artists.proofprofile.net/proofs/artist/78fd751d-b456-40c9-ac9d-5384ac1efcff.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T22:58:38Z
  text: {"copyright_id":"0xb653b92fabad9530abe3ad4a5d4c831153b298e854e73799d6a69530c07b2043","name":"Mahmoud Nader","registered_at":"2026-06-14T17:07:25Z","symbol":"NIM0519592","token_address":"0x5701a4f85284085e22027c9397aad62e7a0132ed","type":"artist","uuid":"78fd751d-b456-40c9-ac9d-5384ac1efcff"}
album: Dawn
  type: MusicAlbum
  date published: 2018-09-12
album: Butterfly (Acoustic)
  type: MusicAlbum
  date published: 2020-03-23
album: Butterfly (Metal Version)
  type: MusicAlbum
  date published: 2020-04-14
album: Grace
  type: MusicAlbum
  date published: 2021-04-07
album: Call Of Silence (Electronic Metal)
  type: MusicAlbum
  date published: 2021-11-06
  track: Call Of Silence - Electronic Metal
    type: MusicRecording
    duration: PT2M7S
    duration ms: 127764
    explicit: false
    by artist: Mahmoud Nader
    in album: Call Of Silence (Electronic Metal)
      type: MusicAlbum
      date published: 2021-11-06
    isrc code: QZNWX2180764
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T07:18:43+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x22e5c689825bbb146eb64c3457815d2660ad7a3985441e7e73c7f86a7535b9dd
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958263
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958263
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWX2180764
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T08:19:47Z
    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 0x22e5c689825bbb146eb64c3457815d2660ad7a3985441e7e73c7f86a7535b9dd. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/QZNWX2180764 — a six-check JSON result.
      date published: 2026-07-16T08:19:47Z
    audio: Call Of Silence - Electronic Metal
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 120.02
      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: 0.471
      additional property: Energy
        type: PropertyValue
        value: 0.878
      additional property: Speechiness
        type: PropertyValue
        value: 0.055
      additional property: Acousticness
        type: PropertyValue
        value: 0.805
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.721
      additional property: Liveness
        type: PropertyValue
        value: 0.109
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.269
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.537
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Valhalla Calling (Metal Version)
  type: MusicAlbum
  date published: 2021-11-27
album: May It Be (Lord Of The Rings)
  type: MusicAlbum
  date published: 2022-03-01
album: This Wandering Day
  type: MusicAlbum
  date published: 2022-12-21
album: Shadow Of War (Main Theme Epic Version)
  type: MusicAlbum
  date published: 2022-12-29
album: Valhalla Calling (Cinematic Version)
  type: MusicAlbum
  date published: 2023-01-18
  track: Valhalla Calling - Cinematic Version
    type: MusicRecording
    duration: PT3M28S
    duration ms: 208941
    explicit: false
    by artist: Mahmoud Nader
    in album: Valhalla Calling (Cinematic Version)
      type: MusicAlbum
      date published: 2023-01-18
    isrc code: QZFZ32334544
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x1e6a03c2a69995fa87c4f6e93ed176d72eea62b338f397addad10818403d24bc
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958951
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958951
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ32334544
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T02:01:41Z
    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 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 0x1e6a03c2a69995fa87c4f6e93ed176d72eea62b338f397addad10818403d24bc. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ32334544 — a six-check JSON result.
      date published: 2026-07-21T02:01:41Z
    audio: Valhalla Calling - Cinematic Version
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 85.027
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      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
album: Assassin's Creed Rogue
album: Leave Her Johnny (Epic Version)
album: Ezio's Family (Mirage Version)
album: Valhalla Calling (Acoustic Version)
album: Horizon Forbidden West (Metal Version)
album: Shadow Of War (Rock Version)
album: Out Of This World : VOL1
album: The Bannered Mare (Epic Rock)
album: Legend Of The Eagle Bearer (Epic Version)
album: Ezio's Family (Assassin's Creed Shadows)
album: Wish I May (Remastered)
album: Assassin's Creed Shadows (Main Theme)
album: Assassin's Creed Shadows Main Theme (Metal Version)
album: Guitarist Of Krat (Lies Of P, Acoustic)
album: Pianist Of Krat (Metal, Lies Of P)
album: Dawn (2025 Version)
album: Valhalla (Main Theme, Metal, Assassin's Creed)

Time Signature
type: PropertyValue
value: 4

Danceability
type: PropertyValue
value: 0.458

Energy
type: PropertyValue
value: 0.672

Speechiness
type: PropertyValue
value: 0.033

Acousticness
type: PropertyValue
value: 0.034

Instrumentalness
type: PropertyValue
value: 0.961

Liveness
type: PropertyValue
value: 0.137

Valence (Positivity)
type: PropertyValue
value: 0.262

Loudness (dB)
type: PropertyValue
value: -8.994

Key Name
type: PropertyValue
value: B

Mode Name
type: PropertyValue
value: Minor

Assassin's Creed Rogue
type: MusicAlbum
date published: 2023-03-04

Leave Her Johnny (Epic Version)
type: MusicAlbum
date published: 2023-04-21

Ezio's Family (Mirage Version)
type: MusicAlbum
date published: 2023-04-26

Valhalla Calling (Acoustic Version)
type: MusicAlbum
date published: 2023-07-23

Horizon Forbidden West (Metal Version)
type: MusicAlbum
date published: 2023-08-31

Shadow Of War (Rock Version)
type: MusicAlbum
date published: 2023-10-26

Out Of This World : VOL1
type: MusicAlbum
date published: 2023-11-05
track: Valhalla Calling - Acoustic Version
  type: MusicRecording
  duration: PT3M28S
  duration ms: 208000
  explicit: false
  by artist: Mahmoud Nader
  in album: Out Of This World : VOL1
    type: MusicAlbum
    date published: 2023-11-05
  isrc code: QZNWW2307754
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-19T15:45:23+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x469f94dae602551914179427feaba291b1e877c927d23a75013736b9e69bcb8f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958749
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958749
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2307754
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-19T15:48:23Z
  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 0x469f94dae602551914179427feaba291b1e877c927d23a75013736b9e69bcb8f. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QZNWW2307754 — a six-check JSON result.
    date published: 2026-07-19T15:48:23Z
  audio: Valhalla Calling - Acoustic Version
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 85.018
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.544
    additional property: Energy
      type: PropertyValue
      value: 0.856
    additional property: Speechiness
      type: PropertyValue
      value: 0.027
    additional property: Acousticness
      type: PropertyValue
      value: 0.343
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.947
    additional property: Liveness
      type: PropertyValue
      value: 0.123
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.339
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.232
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Valhalla Calling - Epic Version
  type: MusicRecording
  duration: PT3M28S
  duration ms: 208941
  explicit: false
  by artist: Mahmoud Nader
  in album: Out Of This World : VOL1
    type: MusicAlbum
    date published: 2023-11-05
  isrc code: QZFZ32334544
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T19:29:04+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x1e6a03c2a69995fa87c4f6e93ed176d72eea62b338f397addad10818403d24bc
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958448
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958448
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ32334544
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T19:49:21Z
  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 0x1e6a03c2a69995fa87c4f6e93ed176d72eea62b338f397addad10818403d24bc. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZFZ32334544 — a six-check JSON result.
    date published: 2026-07-17T19:49:21Z
  audio: Valhalla Calling - Epic Version
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 85.027
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.459
    additional property: Energy
      type: PropertyValue
      value: 0.687
    additional property: Speechiness
      type: PropertyValue
      value: 0.033
    additional property: Acousticness
      type: PropertyValue
      value: 0.035
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.957
    additional property: Liveness
      type: PropertyValue
      value: 0.126
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.317
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.42
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Minor

The Bannered Mare (Epic Rock)
type: MusicAlbum
date published: 2024-01-01

Legend Of The Eagle Bearer (Epic Version)
type: MusicAlbum
date published: 2024-02-01

Ezio's Family (Assassin's Creed Shadows)
type: MusicAlbum
date published: 2024-02-17

Wish I May (Remastered)
type: MusicAlbum
date published: 2024-03-01

Assassin's Creed Shadows (Main Theme)
type: MusicAlbum
date published: 2024-08-10

Assassin's Creed Shadows Main Theme (Metal Version)
type: MusicAlbum
date published: 2025-08-16

Guitarist Of Krat (Lies Of P, Acoustic)
type: MusicAlbum
date published: 2025-08-22

Pianist Of Krat (Metal, Lies Of P)
type: MusicAlbum
date published: 2025-08-30

Dawn (2025 Version)
type: MusicAlbum
date published: 2025-09-01

Valhalla (Main Theme, Metal, Assassin's Creed)
type: MusicAlbum
date published: 2025-09-05