Los Skagaleros
type: MusicGroup
genre: ska
genre: ska punk
popularity: 3
followers: 1353
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xecb4b7d2f96468874cb72295573c2bf04f856c16866ac1b70f7e27663ce38de9
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/4ce71199-b8a0-4661-88df-e0218b0b4a96.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4ce71199-b8a0-4661-88df-e0218b0b4a96.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4ce71199-b8a0-4661-88df-e0218b0b4a96
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xecb4b7d2f96468874cb72295573c2bf04f856c16866ac1b70f7e27663ce38de9","name":"Los Skagaleros","registered_at":"2026-06-16T16:42:11Z","symbol":"NIM1112598","token_address":"0xa713400d8665541639da3c8824d2f70afec626fa","type":"artist","uuid":"4ce71199-b8a0-4661-88df-e0218b0b4a96"}
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 0xecb4b7d2f96468874cb72295573c2bf04f856c16866ac1b70f7e27663ce38de9. 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/4ce71199-b8a0-4661-88df-e0218b0b4a96.json and https://artists.proofprofile.net/proofs/artist/4ce71199-b8a0-4661-88df-e0218b0b4a96.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xecb4b7d2f96468874cb72295573c2bf04f856c16866ac1b70f7e27663ce38de9","name":"Los Skagaleros","registered_at":"2026-06-16T16:42:11Z","symbol":"NIM1112598","token_address":"0xa713400d8665541639da3c8824d2f70afec626fa","type":"artist","uuid":"4ce71199-b8a0-4661-88df-e0218b0b4a96"}
album: L@s Skagaler@s
  type: MusicAlbum
  date published: 2019-10-24
  track: 2 Tales of the Working Class
    type: MusicRecording
    duration: PT3M10S
    duration ms: 190784
    explicit: true
    by artist: Los Skagaleros
    in album: L@s Skagaler@s
      type: MusicAlbum
      date published: 2019-10-24
    genre: ska
    genre: ska punk
    isrc code: SE6I31946799
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T14:17:38+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xfe61f7e5824e0011f0547a1fdf162fc4fbb3b9b77a0a75c4a7459a4cc77e6c8d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959144
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959144
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6I31946799
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T15:38:35Z
    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 0xfe61f7e5824e0011f0547a1fdf162fc4fbb3b9b77a0a75c4a7459a4cc77e6c8d. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/SE6I31946799.
      date published: 2026-07-22T15:38:35Z
    audio: 2 Tales of the Working Class
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 154.861
      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: 0.294
      additional property: Energy
        type: PropertyValue
        value: 0.941
      additional property: Speechiness
        type: PropertyValue
        value: 0.099
      additional property: Acousticness
        type: PropertyValue
        value: 0.002
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.151
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.658
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.969
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: L@s Skagaler@s
  type: MusicAlbum
  date published: 2019-10-24