Efecto Erre
type: MusicGroup
popularity: 2
followers: 397
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x09b3c26df2cdd503d334abf41ab6ae35741362b6606d2fc2887373896bad63fd
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/18132012-4ae8-45a0-b224-dbc674204612.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/18132012-4ae8-45a0-b224-dbc674204612.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/18132012-4ae8-45a0-b224-dbc674204612
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:53:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x09b3c26df2cdd503d334abf41ab6ae35741362b6606d2fc2887373896bad63fd","name":"Efecto Erre","registered_at":"2026-06-15T21:57:08Z","symbol":"NIM0844037","token_address":"0x37f2a2392bd3c27af8d6c9201c919f1f0b7d488f","type":"artist","uuid":"18132012-4ae8-45a0-b224-dbc674204612"}
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 0x09b3c26df2cdd503d334abf41ab6ae35741362b6606d2fc2887373896bad63fd. 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/18132012-4ae8-45a0-b224-dbc674204612.json and https://artists.proofprofile.net/proofs/artist/18132012-4ae8-45a0-b224-dbc674204612.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0x09b3c26df2cdd503d334abf41ab6ae35741362b6606d2fc2887373896bad63fd","name":"Efecto Erre","registered_at":"2026-06-15T21:57:08Z","symbol":"NIM0844037","token_address":"0x37f2a2392bd3c27af8d6c9201c919f1f0b7d488f","type":"artist","uuid":"18132012-4ae8-45a0-b224-dbc674204612"}
album: Lost Cuervoz
  type: MusicAlbum
  date published: 2016-11-05
album: Catástrofx's
  type: MusicAlbum
  date published: 2025-03-28
  track: Ganar o Perder
    type: MusicRecording
    duration: PT2M16S
    duration ms: 136342
    explicit: false
    by artist: Efecto Erre
    in album: Catástrofx's
      type: MusicAlbum
      date published: 2025-03-28
    isrc code: QZGLS2527268
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T08:44:50+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x208f315b90ed096b2ba3d5c99e8289b6d313850ebebc4ac0118e98111eeed0eb
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958988
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958988
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLS2527268
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T09:08:06Z
    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 0x208f315b90ed096b2ba3d5c99e8289b6d313850ebebc4ac0118e98111eeed0eb. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/QZGLS2527268.
      date published: 2026-07-21T09:08:06Z
    audio: Ganar o Perder
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 98.99
      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: 0.711
      additional property: Energy
        type: PropertyValue
        value: 0.938
      additional property: Speechiness
        type: PropertyValue
        value: 0.376
      additional property: Acousticness
        type: PropertyValue
        value: 0.146
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.688
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.682
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.09
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
track: Hands Up!
  type: MusicRecording
  duration: PT4M31S
  duration ms: 271908
  explicit: false
  by artist: Mancha Terrorista
  by artist: Zimagen
  by artist: Mamborap
  by artist: Efecto Erre
  by artist: Donexprs
  by artist: Doze Ermitaño
  by artist: Subone
  by artist: FatKais
  by artist: Madciano
  by artist: Dakilon
  by artist: Dialectyko
  in album: Es Hora del Barrio
    type: MusicAlbum
    date published: 2024-08-22
  popularity: 11
  isrc code: QZNJZ2482871
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-27T06:02:13+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb00e7501307b53e0fd6617850ef58ed330ced5d45f676a117ddb506415dfbf15
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956304
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJZ2482871
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  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 0xb00e7501307b53e0fd6617850ef58ed330ced5d45f676a117ddb506415dfbf15. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZNJZ2482871.
    date published: 2026-07-02T03:55:08Z
  audio: Hands Up!
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 111.723
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.731
    additional property: Energy
      type: PropertyValue
      value: 0.757
    additional property: Speechiness
      type: PropertyValue
      value: 0.31
    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

Acousticness
type: PropertyValue
value: 0.025

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.249

Valence (Positivity)
type: PropertyValue
value: 0.885

Loudness (dB)
type: PropertyValue
value: -10.051

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Major