Alceu Reis
type: MusicGroup
genre: classical
popularity: 30
followers: 129
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0207a05969bab4c9e3d18dbebe6c1c83de93324af4b40d16147b30b7773ebaa1
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/5b113e5c-5001-4f68-a8d4-bec2507325d6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5b113e5c-5001-4f68-a8d4-bec2507325d6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5b113e5c-5001-4f68-a8d4-bec2507325d6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0207a05969bab4c9e3d18dbebe6c1c83de93324af4b40d16147b30b7773ebaa1","name":"Alceu Reis","registered_at":"2026-06-11T21:30:12Z","symbol":"NIM0117533","token_address":"0x6623e385253a58760eb2065c3b79111307409892","type":"artist","uuid":"5b113e5c-5001-4f68-a8d4-bec2507325d6"}
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 0x0207a05969bab4c9e3d18dbebe6c1c83de93324af4b40d16147b30b7773ebaa1. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5b113e5c-5001-4f68-a8d4-bec2507325d6.json and https://artists.proofprofile.net/proofs/artist/5b113e5c-5001-4f68-a8d4-bec2507325d6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x0207a05969bab4c9e3d18dbebe6c1c83de93324af4b40d16147b30b7773ebaa1","name":"Alceu Reis","registered_at":"2026-06-11T21:30:12Z","symbol":"NIM0117533","token_address":"0x6623e385253a58760eb2065c3b79111307409892","type":"artist","uuid":"5b113e5c-5001-4f68-a8d4-bec2507325d6"}
album: Mozart: 5 Divertimentos, K. Anh. 299/439b
  type: MusicAlbum
  date published: 2022-07-22
  track: Divertimento, K. Anh. 229/439b, No. 1: I. Allegro (Arr. for Violin, Viola and Cello by Claudio Cruz)
    type: MusicRecording
    duration: PT4M52S
    duration ms: 292122
    explicit: false
    by artist: Wolfgang Amadeus Mozart
    by artist: Claudio Cruz
    by artist: Gabriel Marin
    by artist: Alceu Reis
    in album: Mozart: 5 Divertimentos, K. Anh. 299/439b
      type: MusicAlbum
      date published: 2022-07-22
    genre: classical
    genre: classical-era
    isrc code: BRARP2200094
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-31T22:23:24+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x63afd07c3cc6ad08e3f2cc6d600ec58a609d042ba660fdd50241ae8ca9878334
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 960478
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/960478
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRARP2200094
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-31T23:30:38Z
    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 0x63afd07c3cc6ad08e3f2cc6d600ec58a609d042ba660fdd50241ae8ca9878334. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/BRARP2200094.
      date published: 2026-07-31T23:30:38Z
    audio: Divertimento, K. Anh. 229/439b, No. 1: I. Allegro (Arr. for Violin, Viola and Cello by Claudio Cruz)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 106.366
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.348
      additional property: Energy
        type: PropertyValue
        value: 0.075
      additional property: Speechiness
        type: PropertyValue
        value: 0.054
      additional property: Acousticness
        type: PropertyValue
        value: 0.964
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.709
      additional property: Liveness
        type: PropertyValue
        value: 0.09
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.498
      additional property: Loudness (dB)
        type: PropertyValue
        value: -20.694
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Divertimento, K. Anh. 229/439b, No. 4: V. Allegretto (Arr. for Violin, Viola and Cello by Claudio Cruz)
    type: MusicRecording
    duration: PT2M17S
    duration ms: 137052
    explicit: false
    by artist: Wolfgang Amadeus Mozart
    by artist: Claudio Cruz
    by artist: Gabriel Marin
    by artist: Alceu Reis
    in album: Mozart: 5 Divertimentos, K. Anh. 299/439b
      type: MusicAlbum
      date published: 2022-07-22
    genre: classical
    genre: classical-era
    isrc code: BRARP2200113
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-04T10:48:50+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xaea696ad80daa3aad9ad252a57207b0739054c976b866c6d6e5e43b72f769b4a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 953513
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/953513
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRARP2200113
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-06-13T12:47:07Z
    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 0xaea696ad80daa3aad9ad252a57207b0739054c976b866c6d6e5e43b72f769b4a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BRARP2200113.
      date published: 2026-06-13T12:47:07Z
    audio: Divertimento, K. Anh. 229/439b, No. 4: V. Allegretto (Arr. for Violin, Viola and Cello by Claudio Cruz)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 72.35
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.61
      additional property: Energy
        type: PropertyValue
        value: 0.13
      additional property: Speechiness
        type: PropertyValue
        value: 0.056
      additional property: Acousticness
        type: PropertyValue
        value: 0.789
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Divertimento, K. Anh. 229/439b, No. 5: V. Polonaise (Arr. for Violin, Viola and Cello by Claudio Cruz)
album: Divertimento, K. Anh. 229/439b, No. 4: I. Allegro (Arr. for Violin, Viola and Cello by Claudio Cruz)
album: Divertimento, K. Anh. 229/439b, No. 3: I. Allegro (Arr. for Violin, Viola and Cello by Claudio Cruz)

Instrumentalness
type: PropertyValue
value: 0.061

Liveness
type: PropertyValue
value: 0.097

Valence (Positivity)
type: PropertyValue
value: 0.652

Loudness (dB)
type: PropertyValue
value: -14.211

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major

Divertimento, K. Anh. 229/439b, No. 5: V. Polonaise (Arr. for Violin, Viola and Cello by Claudio Cruz)
type: MusicAlbum
date published: 2022-07-01

Divertimento, K. Anh. 229/439b, No. 4: I. Allegro (Arr. for Violin, Viola and Cello by Claudio Cruz)
type: MusicAlbum
date published: 2022-06-10

Divertimento, K. Anh. 229/439b, No. 3: I. Allegro (Arr. for Violin, Viola and Cello by Claudio Cruz)
type: MusicAlbum
date published: 2022-05-20