Willzeen
type: MusicGroup
popularity: 7
followers: 201
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc91bc67b66e51825d266129ac11069b2dbc40e56edef7b27bcd8a06db9140158
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953909
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953909
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/183b0c51-b237-4569-8be6-32bc31f4fe32.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/183b0c51-b237-4569-8be6-32bc31f4fe32.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/183b0c51-b237-4569-8be6-32bc31f4fe32
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:53:13Z
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 0xc91bc67b66e51825d266129ac11069b2dbc40e56edef7b27bcd8a06db9140158. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/183b0c51-b237-4569-8be6-32bc31f4fe32.json and https://artists.proofprofile.net/proofs/artist/183b0c51-b237-4569-8be6-32bc31f4fe32.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
album: Meus Animais
  type: MusicAlbum
  date published: 2021-10-09
album: Meu Pulso
  type: MusicAlbum
  date published: 2021-11-20
album: Olhos Verdes
  type: MusicAlbum
  date published: 2022-01-23
album: Bandida
  type: MusicAlbum
  date published: 2022-06-10
album: Bandoleiro
  type: MusicAlbum
  date published: 2023-11-18
album: Bandoleiro
  type: MusicAlbum
  date published: 2023-11-18
album: PISANDO NO LIXO+++
  type: MusicAlbum
  date published: 2024-02-23
album: PISANDO NO LIXO+++
  type: MusicAlbum
  date published: 2024-02-23
album: Syrup
  type: MusicAlbum
  date published: 2024-10-18
album: Tipo Vini Jr.
  type: MusicAlbum
  date published: 2024-10-28
album: Tipo Vini Jr.
  type: MusicAlbum
  date published: 2024-10-28
album: Noite começou...
  type: MusicAlbum
  date published: 2025-02-22
  track: Noite começou...
    type: MusicRecording
    duration: PT2M14S
    duration ms: 134322
    explicit: false
    by artist: Willzeen
    in album: Noite começou...
      type: MusicAlbum
      date published: 2025-02-22
    isrc code: CAHQJ2578016
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T08:33:44+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa79ed24ae947302a910460f3091cc4020fde35f532c9d02ebff3a138017f7550
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958388
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958388
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAHQJ2578016
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T09:14:21Z
    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 0xa79ed24ae947302a910460f3091cc4020fde35f532c9d02ebff3a138017f7550. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAHQJ2578016.
      date published: 2026-07-17T09:14:21Z
    audio: Noite começou...
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 97.117
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 1
      additional property: Danceability
        type: PropertyValue
        value: 0.541
      additional property: Energy
        type: PropertyValue
        value: 0.696
      additional property: Speechiness
        type: PropertyValue
        value: 0.355
      additional property: Acousticness
        type: PropertyValue
        value: 0.67
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.119
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.49
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.902
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: NÍVEL ELEVADO
  type: MusicAlbum
  date published: 2025-03-28
  track: NÍVEL ELEVADO
    type: MusicRecording
    duration: PT2M20S
    duration ms: 140634
    explicit: false
    by artist: Willzeen
    in album: NÍVEL ELEVADO
      type: MusicAlbum
      date published: 2025-03-28
    isrc code: CACWV2540593
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T22:07:51+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0cca8f08d0d87b99d32c259cd2b2cbd588098489be9613acd99235f6a26c6614
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957766
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957766
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CACWV2540593
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T22:25:04Z
    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 0x0cca8f08d0d87b99d32c259cd2b2cbd588098489be9613acd99235f6a26c6614. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/CACWV2540593.
      date published: 2026-07-12T22:25:04Z
    audio: NÍVEL ELEVADO
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 129.891
      additional property: Musical Key
      additional property: Mode (Major/Minor)
      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: Subindo de Nível

Musical Key
type: PropertyValue
value: 1

Mode (Major/Minor)
type: PropertyValue
value: 1

Time Signature
type: PropertyValue
value: 4

Danceability
type: PropertyValue
value: 0.7

Energy
type: PropertyValue
value: 0.508

Speechiness
type: PropertyValue
value: 0.085

Acousticness
type: PropertyValue
value: 0.208

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.117

Valence (Positivity)
type: PropertyValue
value: 0.079

Loudness (dB)
type: PropertyValue
value: -10.674

Key Name
type: PropertyValue
value: C#

Mode Name
type: PropertyValue
value: Major

Subindo de Nível
type: MusicAlbum
date published: 2025-07-24
track: Sem Amor
  type: MusicRecording
  duration: PT2M20S
  duration ms: 140471
  explicit: false
  by artist: Willzeen
  in album: Subindo de Nível
    type: MusicAlbum
    date published: 2025-07-24
  isrc code: CALVP2570369
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-22T02:49:25+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf63af2d1dc4f1219c4d038f5822f875ec3f7f8a88f2c28d380bb9cf27f73d6d2
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 959094
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/959094
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALVP2570369
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-22T03:33:16Z
  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 0xf63af2d1dc4f1219c4d038f5822f875ec3f7f8a88f2c28d380bb9cf27f73d6d2. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/CALVP2570369.
    date published: 2026-07-22T03:33:16Z
  audio: Sem Amor
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 126.118
    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: 0.687
    additional property: Energy
      type: PropertyValue
      value: 0.342
    additional property: Speechiness
      type: PropertyValue
      value: 0.059
    additional property: Acousticness
      type: PropertyValue
      value: 0.646
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.115
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.232
    additional property: Loudness (dB)
      type: PropertyValue
      value: -14.432
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Carta aberta Freestyle
  type: MusicRecording
  duration: PT2M18S
  duration ms: 138970
  explicit: false
  by artist: Willzeen
  in album: Subindo de Nível
    type: MusicAlbum
    date published: 2025-07-24
  isrc code: CALVP2570370
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T19:00:54+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf9c3491280638207152c0f583244150a3069544e353fa355f363ab81f2005313
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958444
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958444
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALVP2570370
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T19:12:23Z
  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 0xf9c3491280638207152c0f583244150a3069544e353fa355f363ab81f2005313. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALVP2570370.
    date published: 2026-07-17T19:12:23Z
  audio: Carta aberta Freestyle
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 142.175
    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: 0.628
    additional property: Energy
      type: PropertyValue
      value: 0.545
    additional property: Speechiness
      type: PropertyValue
      value: 0.16
    additional property: Acousticness
      type: PropertyValue
      value: 0.562
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.141
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.513
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.797
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Bolando mais um plano
  type: MusicRecording
  duration: PT2M21S
  duration ms: 141834
  explicit: false
  by artist: Willzeen
  in album: Subindo de Nível
    type: MusicAlbum
    date published: 2025-07-24
  isrc code: CALVP2570372
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T23:20:10+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0c12ca351d48b8b328a0cb02e974791be9520256eb0e2ae0cbe95409be44e28d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956856
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956856
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALVP2570372
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Bolando mais um plano
track: Nova Onda é o W!

OTSTimestamp
type: PropertyValue
value: 2026-07-06T01:25:57Z

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 0x0c12ca351d48b8b328a0cb02e974791be9520256eb0e2ae0cbe95409be44e28d. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/CALVP2570372.
date published: 2026-07-06T01:25:57Z

Bolando mais um plano
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 112.74
additional property: Musical Key
  type: PropertyValue
  value: 1
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 1
additional property: Danceability
  type: PropertyValue
  value: 0.511
additional property: Energy
  type: PropertyValue
  value: 0.579
additional property: Speechiness
  type: PropertyValue
  value: 0.262
additional property: Acousticness
  type: PropertyValue
  value: 0.235
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.116
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.138
additional property: Loudness (dB)
  type: PropertyValue
  value: -8.933
additional property: Key Name
  type: PropertyValue
  value: C#
additional property: Mode Name
  type: PropertyValue
  value: Major

Nova Onda é o W!
type: MusicRecording
duration: PT1M47S
duration ms: 107776
explicit: false
by artist: Willzeen
in album: Subindo de Nível
  type: MusicAlbum
  date published: 2025-07-24
isrc code: CALVP2570374
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-22T15:24:29+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaa82d686b6d8bd4434c15fbd0aedc7796de591898e50111cd6b3f38198a7d450
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 959145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/959145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALVP2570374
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-22T15:39:05Z
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 0xaa82d686b6d8bd4434c15fbd0aedc7796de591898e50111cd6b3f38198a7d450. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/CALVP2570374.
  date published: 2026-07-22T15:39:05Z
audio: Nova Onda é o W!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.987
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.705
  additional property: Energy
    type: PropertyValue
    value: 0.691
  additional property: Speechiness
    type: PropertyValue
    value: 0.261
  additional property: Acousticness
    type: PropertyValue
    value: 0.388
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.342
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.314
  additional property: Loudness (dB)
    type: PropertyValue
    value: -8.143
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor