WladMarcel
type: MusicGroup
popularity: 7
followers: 261
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb1d46f8ad3380e1e2845742edb500cf46774de709cba4bc53be6337771e54ea5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/933344c6-c09b-4375-a755-e95a95b4111f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/933344c6-c09b-4375-a755-e95a95b4111f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/933344c6-c09b-4375-a755-e95a95b4111f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
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 0xb1d46f8ad3380e1e2845742edb500cf46774de709cba4bc53be6337771e54ea5. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/933344c6-c09b-4375-a755-e95a95b4111f.json and https://artists.proofprofile.net/proofs/artist/933344c6-c09b-4375-a755-e95a95b4111f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
album: Tua Falta
  type: MusicAlbum
  date published: 2021-02-05
album: Então Diga
  type: MusicAlbum
  date published: 2021-07-23
album: Não Me Ligue Mais
  type: MusicAlbum
  date published: 2021-10-07
album: Prelúdio
  type: MusicAlbum
  date published: 2021-11-17
album: Match
  type: MusicAlbum
  date published: 2022-03-22
album: Match (Solo)
  type: MusicAlbum
  date published: 2022-03-30
album: Consegui
  type: MusicAlbum
  date published: 2022-10-06
album: Prelúdio (Acústico)
  type: MusicAlbum
  date published: 2022-12-15
album: Golpe
  type: MusicAlbum
  date published: 2023-02-03
album: Não Mais
  type: MusicAlbum
  date published: 2023-07-06
album: Ficar Bem
  type: MusicAlbum
  date published: 2023-10-05
album: Caos
  type: MusicAlbum
  date published: 2023-12-14
album: Caos (Remix)
  type: MusicAlbum
  date published: 2024-05-24
album: Ser Humano Premium
  type: MusicAlbum
  date published: 2024-09-12
album: Expectativas
  type: MusicAlbum
  date published: 2024-10-28
album: Expectativas
  type: MusicAlbum
  date published: 2024-10-28
album: Diga Que Ta Bom
  type: MusicAlbum
  date published: 2024-12-19
album: Old Wla Vol. 1
  type: MusicAlbum
  date published: 2024-12-20
album: Aprendi o Que É o Amor
  type: MusicAlbum
  date published: 2025-01-27
  track: Aprendi o Que É o Amor
    type: MusicRecording
    duration: PT2M38S
    duration ms: 158479
    explicit: false
    by artist: WladMarcel
    in album: Aprendi o Que É o Amor
      type: MusicAlbum
      date published: 2025-01-27
    isrc code: QZW9M2473905
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T18:41:41+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3b17cbd7de38e5c899848024ada90c8793869dc7c17be5e20d81d97b869dcd92
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958194
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958194
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9M2473905
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T20:32:27Z
    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 0x3b17cbd7de38e5c899848024ada90c8793869dc7c17be5e20d81d97b869dcd92. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZW9M2473905.
      date published: 2026-07-15T20:32:27Z
    audio: Aprendi o Que É o Amor
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 127.081
      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: 0.8
      additional property: Energy
        type: PropertyValue
        value: 0.732
      additional property: Speechiness
        type: PropertyValue
        value: 0.033
      additional property: Acousticness
        type: PropertyValue
        value: 0.154
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.002
      additional property: Liveness
        type: PropertyValue
        value: 0.078
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.689
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.387
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Ainda É Verão
  type: MusicAlbum
  date published: 2025-02-27
album: Que Droga
  type: MusicAlbum
  date published: 2025-06-11
album: Grudinho
  type: MusicAlbum
  date published: 2025-09-29
  track: Grudinho
    type: MusicRecording
    duration: PT3M40S
    duration ms: 220800
    explicit: false
    by artist: WladMarcel
    in album: Grudinho
      type: MusicAlbum
      date published: 2025-09-29
    isrc code: QZTPX2545271
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T15:57:50+00:00
    additional property: CopyrightChainExplorerURL
    additional property: OTSHash
    additional property: OTSBitcoinBlock
    additional property: OTSBitcoinBlockVerifyURL
    additional property: OTSVerificationAPI
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: Grudinho

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x2135f754dba3d2544ce8ede05f942bb127ff35aace4d67fa50f748780bb8bf74

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 959152

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/959152

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTPX2545271

OTSTimestamp
type: PropertyValue
value: 2026-07-22T16:23:52Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2135f754dba3d2544ce8ede05f942bb127ff35aace4d67fa50f748780bb8bf74. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/QZTPX2545271.
date published: 2026-07-22T16:23:52Z

Grudinho
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 99.986
additional property: Musical Key
  type: PropertyValue
  value: 1
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.509
additional property: Energy
  type: PropertyValue
  value: 0.489
additional property: Speechiness
  type: PropertyValue
  value: 0.134
additional property: Acousticness
  type: PropertyValue
  value: 0.177
additional property: Instrumentalness
  type: PropertyValue
  value: 0.003
additional property: Liveness
  type: PropertyValue
  value: 0.387
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.158
additional property: Loudness (dB)
  type: PropertyValue
  value: -8.417
additional property: Key Name
  type: PropertyValue
  value: C#
additional property: Mode Name
  type: PropertyValue
  value: Minor