Lost Take
type: MusicGroup
popularity: 4
followers: 269
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x32a75475ed68853b69ec7837036b5d5c585739a357bc13eb34d5cab83632ecbf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/87242f22-c0e0-4852-8fbc-84c94c663c82.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/87242f22-c0e0-4852-8fbc-84c94c663c82.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/87242f22-c0e0-4852-8fbc-84c94c663c82
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x32a75475ed68853b69ec7837036b5d5c585739a357bc13eb34d5cab83632ecbf","name":"Lost Take","registered_at":"2026-06-17T12:49:55Z","symbol":"NIM1400623","token_address":"0x3f67895796e3e0c198dcffbaecafde5d4b93311d","type":"artist","uuid":"87242f22-c0e0-4852-8fbc-84c94c663c82"}
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 0x32a75475ed68853b69ec7837036b5d5c585739a357bc13eb34d5cab83632ecbf. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/87242f22-c0e0-4852-8fbc-84c94c663c82.json and https://artists.proofprofile.net/proofs/artist/87242f22-c0e0-4852-8fbc-84c94c663c82.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x32a75475ed68853b69ec7837036b5d5c585739a357bc13eb34d5cab83632ecbf","name":"Lost Take","registered_at":"2026-06-17T12:49:55Z","symbol":"NIM1400623","token_address":"0x3f67895796e3e0c198dcffbaecafde5d4b93311d","type":"artist","uuid":"87242f22-c0e0-4852-8fbc-84c94c663c82"}
album: En Silencio
  type: MusicAlbum
  date published: 2024-03-08
album: Adicción
  type: MusicAlbum
  date published: 2025-02-14
  track: Adicción
    type: MusicRecording
    duration: PT2M55S
    duration ms: 175000
    explicit: false
    by artist: Lost Take
    in album: Adicción
      type: MusicAlbum
      date published: 2025-02-14
    isrc code: QZGLM2537654
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T23:46:28+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa465ab306d3b6fc52e311b911f917d31202cac75cafe652a3c9cfbc661d834d6
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958690
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958690
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLM2537654
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T07:14:39Z
    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 0xa465ab306d3b6fc52e311b911f917d31202cac75cafe652a3c9cfbc661d834d6. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZGLM2537654.
      date published: 2026-07-19T07:14:39Z
    audio: Adicción
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 195.144
      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: 0.377
      additional property: Energy
        type: PropertyValue
        value: 0.947
      additional property: Speechiness
        type: PropertyValue
        value: 0.132
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.236
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.443
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.786
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Alter Ego
  type: MusicAlbum
  date published: 2025-07-18