David Derekh
type: MusicGroup
genre: portuguese hip hop
popularity: 22
followers: 1249
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x88c58fe3e69b3dd2cf165198889d6e1a1d1643cad7f7da6376cfbda63fb3db51
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/40c15c3c-6213-417d-ba2f-c78a32f663e4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/40c15c3c-6213-417d-ba2f-c78a32f663e4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/40c15c3c-6213-417d-ba2f-c78a32f663e4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x88c58fe3e69b3dd2cf165198889d6e1a1d1643cad7f7da6376cfbda63fb3db51","name":"David Derekh","registered_at":"2026-06-11T17:37:21Z","symbol":"NIM0084283","token_address":"0x1b8d0e7414abdd38465908048e5e342aefb0f12a","type":"artist","uuid":"40c15c3c-6213-417d-ba2f-c78a32f663e4"}
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 0x88c58fe3e69b3dd2cf165198889d6e1a1d1643cad7f7da6376cfbda63fb3db51. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/40c15c3c-6213-417d-ba2f-c78a32f663e4.json and https://artists.proofprofile.net/proofs/artist/40c15c3c-6213-417d-ba2f-c78a32f663e4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0x88c58fe3e69b3dd2cf165198889d6e1a1d1643cad7f7da6376cfbda63fb3db51","name":"David Derekh","registered_at":"2026-06-11T17:37:21Z","symbol":"NIM0084283","token_address":"0x1b8d0e7414abdd38465908048e5e342aefb0f12a","type":"artist","uuid":"40c15c3c-6213-417d-ba2f-c78a32f663e4"}
album: Toss Up
  type: MusicAlbum
  date published: 2022-03-06
album: Something To Prove
  type: MusicAlbum
  date published: 2022-04-03
album: Out Of Reach:
  type: MusicAlbum
  date published: 2022-05-01
album: You Still Broke
  type: MusicAlbum
  date published: 2022-06-05
album: 10 Strikes
  type: MusicAlbum
  date published: 2022-07-24
album: Get Out My Way
  type: MusicAlbum
  date published: 2022-09-09
album: LITerature: The Mixtape
  type: MusicAlbum
  date published: 2022-09-16
album: Estrela De David
  type: MusicAlbum
  date published: 2022-11-04
album: Sozinho na Road & Tão Diferente
  type: MusicAlbum
  date published: 2022-12-02
album: A Tua Mente
  type: MusicAlbum
  date published: 2022-12-15
album: O Balão Nunca Rebenta
  type: MusicAlbum
  date published: 2022-12-23
album: Um Pouco Tenso
  type: MusicAlbum
  date published: 2023-01-06
album: Nada Disso
  type: MusicAlbum
  date published: 2023-01-14
album: Malcolm X
  type: MusicAlbum
  date published: 2023-01-21
album: MOISÉS
  type: MusicAlbum
  date published: 2023-01-28
album: Recomeços pt. 1
  type: MusicAlbum
  date published: 2023-02-04
album: Recomeços pt. 2
  type: MusicAlbum
  date published: 2023-02-11
album: why would u
  type: MusicAlbum
  date published: 2023-02-18
album: 365
  type: MusicAlbum
  date published: 2023-02-25
  track: 365
    type: MusicRecording
    duration: PT3M22S
    duration ms: 202794
    explicit: true
    by artist: David Derekh
    in album: 365
      type: MusicAlbum
      date published: 2023-02-25
    genre: portuguese hip hop
    isrc code: QZDA82378286
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T09:12:11+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf2827d0298ae5cdbaf472cab945b7fc954d0cc300a4c46cbf7affa096117fbd2
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958531
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958531
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA82378286
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T09:39:18Z
    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 0xf2827d0298ae5cdbaf472cab945b7fc954d0cc300a4c46cbf7affa096117fbd2. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/QZDA82378286.
      date published: 2026-07-18T09:39:18Z
    audio: 365
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 116.006
      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: 0.817
      additional property: Energy
        type: PropertyValue
        value: 0.8
      additional property: Speechiness
        type: PropertyValue
        value: 0.052
      additional property: Acousticness
        type: PropertyValue
        value: 0.291
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.1
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.212
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.95
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: SUM
  type: MusicAlbum
  date published: 2023-03-04
album: Círculo
  type: MusicAlbum
  date published: 2023-03-18
album: Long Way
  type: MusicAlbum
  date published: 2023-03-25
album: Reflexo (My Home)
  type: MusicAlbum
  date published: 2023-04-01
album: Outta My League
  type: MusicAlbum
  date published: 2023-04-08
album: A Estrela Que Não Brilha
  type: MusicAlbum
  date published: 2023-09-23
album: Não Sei
album: Ainda Assim
album: Big Steppin
album: TENS UMA LATA
album: ‬ Mais Ninguém
album: Hm...
album: isto não é um álbum.
album: ZOOM OUT
album: MEMENTO MORI
album: AZ4R.O.MEU

Não Sei
type: MusicAlbum
date published: 2024-02-22

Ainda Assim
type: MusicAlbum
date published: 2024-04-04

Big Steppin
type: MusicAlbum
date published: 2024-05-16

TENS UMA LATA
type: MusicAlbum
date published: 2024-06-28

‬ Mais Ninguém
type: MusicAlbum
date published: 2024-08-22
track: Mais Ninguém
  type: MusicRecording
  duration: PT3M1S
  duration ms: 181863
  explicit: false
  by artist: David Derekh
  in album: ‬ Mais Ninguém
    type: MusicAlbum
    date published: 2024-08-22
  genre: portuguese hip hop
  isrc code: QM7282462673
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-11T05:45:30+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x58200ae55abae9339e23c2a5289f1786307eed60ec6b24a99fc12080ffdecf9d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957546
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957546
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7282462673
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-11T09:35:53Z
  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 0x58200ae55abae9339e23c2a5289f1786307eed60ec6b24a99fc12080ffdecf9d. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/QM7282462673.
    date published: 2026-07-11T09:35:53Z
  audio: Mais Ninguém
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 80.482
    additional property: Musical Key
      type: PropertyValue
      value: 8
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.737
    additional property: Energy
      type: PropertyValue
      value: 0.533
    additional property: Speechiness
      type: PropertyValue
      value: 0.09
    additional property: Acousticness
      type: PropertyValue
      value: 0.587
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.108
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.485
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.874
    additional property: Key Name
      type: PropertyValue
      value: Ab
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Hm...
type: MusicAlbum
date published: 2024-10-17
track: Hm...
  type: MusicRecording
  duration: PT2M33S
  duration ms: 153157
  explicit: false
  by artist: David Derekh
  in album: Hm...
    type: MusicAlbum
    date published: 2024-10-17
  genre: portuguese hip hop
  isrc code: QMDA62427388
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T21:50:37+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4287453b4c1ff8d4b755485cdfae3efb65309d19d709bf04e6902b7793d833ad
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958461
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958461
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA62427388
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T23:18:11Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4287453b4c1ff8d4b755485cdfae3efb65309d19d709bf04e6902b7793d833ad. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QMDA62427388.
    date published: 2026-07-17T23:18:11Z
  audio: Hm...
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 75.993
    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: 0.762
    additional property: Energy
      type: PropertyValue
      value: 0.221
    additional property: Speechiness
      type: PropertyValue
      value: 0.382
    additional property: Acousticness
      type: PropertyValue
      value: 0.315
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.003
    additional property: Liveness
      type: PropertyValue
      value: 0.103
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.096
    additional property: Loudness (dB)
      type: PropertyValue
      value: -15.384
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major

isto não é um álbum.
type: MusicAlbum
date published: 2024-12-12
track: Flow Quentin
  type: MusicRecording
  duration: PT2M54S
  duration ms: 174814
  explicit: false
  by artist: David Derekh
  in album: isto não é um álbum.
    type: MusicAlbum
    date published: 2024-12-12
  genre: portuguese hip hop
  isrc code: QMDA72493445
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-13T18:15:39+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x74fce38bd941659b3e254c6b1bddbee3631e27c328df9780436b897755030992
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957898
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957898
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA72493445
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-13T19:28:48Z
  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 0x74fce38bd941659b3e254c6b1bddbee3631e27c328df9780436b897755030992. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/QMDA72493445.
    date published: 2026-07-13T19:28:48Z
  audio: Flow Quentin
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 161.852
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.695
    additional property: Energy
      type: PropertyValue
      value: 0.47
    additional property: Speechiness
      type: PropertyValue
      value: 0.245
    additional property: Acousticness
      type: PropertyValue
      value: 0.505
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.155
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.484
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.742
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Game Over, Next
  type: MusicRecording
  duration: PT3M3S
  duration ms: 183157
  explicit: false
  by artist: David Derekh
  in album: isto não é um álbum.
    type: MusicAlbum
    date published: 2024-12-12
  genre: portuguese hip hop
  isrc code: QMDA72493446
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T03:56:31+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x38ffee383206e39d340c8bc0df07e7ca894fa8fdccd2db2d4fc1756e68c3ee77
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958245
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958245
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA72493446
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-16T06:58:15Z
  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 0x38ffee383206e39d340c8bc0df07e7ca894fa8fdccd2db2d4fc1756e68c3ee77. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T06:58:15Z), 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/QMDA72493446.
    date published: 2026-07-16T06:58:15Z
  audio: Game Over, Next
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 133.036
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.821
    additional property: Energy
      type: PropertyValue
      value: 0.476
    additional property: Speechiness
      type: PropertyValue
      value: 0.057
    additional property: Acousticness
      type: PropertyValue
      value: 0.103
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.008
    additional property: Liveness
      type: PropertyValue
      value: 0.105
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.117
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.099
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Porque é que tenho guita?
  type: MusicRecording
  duration: PT3M8S
  duration ms: 188869
  explicit: false
  by artist: David Derekh
  in album: isto não é um álbum.
    type: MusicAlbum
    date published: 2024-12-12
  genre: portuguese hip hop
  isrc code: QMFME2400375
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-11T06:18:46+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xec9be1a7bb9f7e0a5c65eee0e18d5653d1114d88e4143205e4f31b5c5b9ddcf0
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957546
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957546
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Porque é que tenho guita?
track: Arritmia
track: Quem és tu?

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OTSTimestamp
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OTSVerifyInstructions
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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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec9be1a7bb9f7e0a5c65eee0e18d5653d1114d88e4143205e4f31b5c5b9ddcf0. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/QMFME2400375.
date published: 2026-07-11T09:35:53Z

Porque é que tenho guita?
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additional property: Tempo (BPM)
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additional property: Musical Key
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additional property: Mode (Major/Minor)
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additional property: Time Signature
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additional property: Danceability
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additional property: Energy
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additional property: Speechiness
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additional property: Acousticness
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additional property: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
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additional property: Key Name
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additional property: Mode Name
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Arritmia
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duration: PT3M3S
duration ms: 183000
explicit: false
by artist: David Derekh
in album: isto não é um álbum.
  type: MusicAlbum
  date published: 2024-12-12
genre: portuguese hip hop
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe842ec2ee867ca5047d270d5683492efe3e79bef7f199cfb3d52dcde1a1d370. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:25:30Z), 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/QMDA72493447.
  date published: 2026-07-17T00:25:30Z
audio: Arritmia
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
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  additional property: Valence (Positivity)
    type: PropertyValue
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Quem és tu?
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by artist: David Derekh
in album: isto não é um álbum.
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  date published: 2024-12-12
genre: portuguese hip hop
isrc code: QMDA72493448
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additional property: CopyrightStatus
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additional property: OTSTimestamp
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  value: 2026-07-05T01:12:41Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef19dd78b403c823029ce4f969597e2fa0daa291ed93061a2014ef3f40d086f2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA72493448.
  date published: 2026-07-05T01:12:41Z
audio: Quem és tu?
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    type: PropertyValue
    value: 4
  additional property: Danceability
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    value: 0.2
  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
    value: 0.109
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    type: PropertyValue
    value: 0.039
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    value: A
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ZOOM OUT
type: MusicAlbum
date published: 2025-10-09

MEMENTO MORI
type: MusicAlbum
date published: 2025-10-23

AZ4R.O.MEU
type: MusicAlbum
date published: 2025-11-13