Retravo
type: MusicGroup
popularity: 6
followers: 81
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x520640f7454a0d0927c1f3403be27e3214777c1da5ffb4541ed94620a1a1d9be
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954631
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954631
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d09ec724-a16f-417c-8b66-4ee9057318ec.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d09ec724-a16f-417c-8b66-4ee9057318ec.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d09ec724-a16f-417c-8b66-4ee9057318ec
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T02:46:24Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x520640f7454a0d0927c1f3403be27e3214777c1da5ffb4541ed94620a1a1d9be. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d09ec724-a16f-417c-8b66-4ee9057318ec.json and https://artists.proofprofile.net/proofs/artist/d09ec724-a16f-417c-8b66-4ee9057318ec.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T02:46:24Z
album: Fique
  type: MusicAlbum
  date published: 2024-09-24
  track: Fique
    type: MusicRecording
    duration: PT3M17S
    duration ms: 197000
    explicit: false
    by artist: Retravo
    in album: Fique
      type: MusicAlbum
      date published: 2024-09-24
    isrc code: BRTRB2405722
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T00:17:16+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xeaa13685bd6d894a7d52cb5e6d9bed01cf31c735442dff7220a88ed2aaded079
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958800
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958800
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTRB2405722
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T00:52:19Z
    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 0xeaa13685bd6d894a7d52cb5e6d9bed01cf31c735442dff7220a88ed2aaded079. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/BRTRB2405722.
      date published: 2026-07-20T00:52:19Z
    audio: Fique
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 180.043
      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: 0.496
      additional property: Energy
        type: PropertyValue
        value: 0.403
      additional property: Speechiness
        type: PropertyValue
        value: 0.027
      additional property: Acousticness
        type: PropertyValue
        value: 0.001
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.097
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.821
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.389
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Ainda não é o fim
  type: MusicAlbum
  date published: 2025-05-01
  track: Busco
    type: MusicRecording
    duration: PT3M35S
    duration ms: 215702
    explicit: false
    by artist: Retravo
    in album: Ainda não é o fim
      type: MusicAlbum
      date published: 2025-05-01
    isrc code: BRTRB2502832
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T06:47:05+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x795c8488ce3857c3007a9c516b8ba56a3cfde0d527dc60b6d1107535a5e20298
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956894
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956894
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTRB2502832
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T07:53:57Z
    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 0x795c8488ce3857c3007a9c516b8ba56a3cfde0d527dc60b6d1107535a5e20298. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/BRTRB2502832.
      date published: 2026-07-06T07:53:57Z
    audio: Busco
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 120.024
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.591
      additional property: Energy
        type: PropertyValue
        value: 0.662
      additional property: Speechiness
        type: PropertyValue
        value: 0.031
      additional property: Acousticness
        type: PropertyValue
        value: 0.007
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.133
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.37
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.687
      additional property: Key Name
      additional property: Mode Name

Key Name
type: PropertyValue
value: B

Mode Name
type: PropertyValue
value: Major