Skacha
type: MusicGroup
popularity: 9
followers: 1693
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x383bbc71a7f0e861983e294d08ecf0d80e7ee2101d25118b8fecc3670d4eef04
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/64973321-bffa-4fb3-ae66-446f84ccbdb5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/64973321-bffa-4fb3-ae66-446f84ccbdb5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/64973321-bffa-4fb3-ae66-446f84ccbdb5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
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 0x383bbc71a7f0e861983e294d08ecf0d80e7ee2101d25118b8fecc3670d4eef04. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/64973321-bffa-4fb3-ae66-446f84ccbdb5.json and https://artists.proofprofile.net/proofs/artist/64973321-bffa-4fb3-ae66-446f84ccbdb5.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T08:11:48Z
album: Sempre Ceibes
  type: MusicAlbum
  date published: 1995
album: Sempre Ceibes
  type: MusicAlbum
  date published: 1995-04-05
album: Xustiza Cega
  type: MusicAlbum
  date published: 1997-03-07
album: Skacha
  type: MusicAlbum
  date published: 1999
album: Skacha
  type: MusicAlbum
  date published: 1999-03-03
album: A Ferro E Lume
  type: MusicAlbum
  date published: 2006
album: A Ferro e Lume
  type: MusicAlbum
  date published: 2006-04-05
  track: A por Ellos
    type: MusicRecording
    duration: PT3M26S
    duration ms: 206560
    explicit: false
    by artist: Skacha
    in album: A Ferro e Lume
      type: MusicAlbum
      date published: 2006-04-05
    isrc code: QM7281881220
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T22:00:55+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xbed6124e7610b88e349a5f249f4a1ef62966a924a4a398522a763d77958f4853
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959069
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959069
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7281881220
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T22:32:59Z
    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 0xbed6124e7610b88e349a5f249f4a1ef62966a924a4a398522a763d77958f4853. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7281881220 — a six-check JSON result.
      date published: 2026-07-21T22:32:59Z
    audio: A por Ellos
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 113.369
      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: 0.51
      additional property: Energy
        type: PropertyValue
        value: 0.955
      additional property: Speechiness
        type: PropertyValue
        value: 0.072
      additional property: Acousticness
        type: PropertyValue
        value: 0.002
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.102
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.653
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.029
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Catro
  type: MusicAlbum
  date published: 2010-02-03
track: Fuxidos
  type: MusicRecording
  duration: PT3M22S
  duration ms: 202713
  explicit: false
  by artist: Residuos Do Sistema
  by artist: Skacha
  by artist: RADIOCRIMEN
  by artist: Disturbio 77
  by artist: Guerra De Guerrillas
  by artist: Cabezas Suicidas
  by artist: Falperrys
  in album: Por Vencer
    type: MusicAlbum
    date published: 2024-03-29
  isrc code: SE6SA2225658
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-30T17:34:39+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc7e8bfbd3b979a33a1bae6b1dd6384a2dfc26c970086f1e551f42d6ac4609dc1
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960288
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960288
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6SA2225658
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T17:41:38Z
  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 0xc7e8bfbd3b979a33a1bae6b1dd6384a2dfc26c970086f1e551f42d6ac4609dc1. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6SA2225658 — a six-check JSON result.
    date published: 2026-07-30T17:41:38Z
  audio: Fuxidos
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 130.914
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    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

Time Signature
type: PropertyValue
value: 5

Danceability
type: PropertyValue
value: 0.645

Energy
type: PropertyValue
value: 0.974

Speechiness
type: PropertyValue
value: 0.053

Acousticness
type: PropertyValue
value: 0.026

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.374

Valence (Positivity)
type: PropertyValue
value: 0.577

Loudness (dB)
type: PropertyValue
value: -10.053

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major