Evan Langston
type: MusicGroup
popularity: 2
followers: 157
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x635bd64e9509ff4dac56c7ed002c7003269683151b2db9b4744bd28600f2ab5c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953922
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953922
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1afe156e-e80f-40be-8abf-c800a2aac75b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1afe156e-e80f-40be-8abf-c800a2aac75b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1afe156e-e80f-40be-8abf-c800a2aac75b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T09:36:34Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x635bd64e9509ff4dac56c7ed002c7003269683151b2db9b4744bd28600f2ab5c","name":"Evan Langston","registered_at":"2026-06-15T23:00:10Z","symbol":"NIM0859080","token_address":"0x0eaddc5d553e6dcf42dea8a72e1a7393ff92e090","type":"artist","uuid":"1afe156e-e80f-40be-8abf-c800a2aac75b"}
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 0x635bd64e9509ff4dac56c7ed002c7003269683151b2db9b4744bd28600f2ab5c. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1afe156e-e80f-40be-8abf-c800a2aac75b.json and https://artists.proofprofile.net/proofs/artist/1afe156e-e80f-40be-8abf-c800a2aac75b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
  text: {"copyright_id":"0x635bd64e9509ff4dac56c7ed002c7003269683151b2db9b4744bd28600f2ab5c","name":"Evan Langston","registered_at":"2026-06-15T23:00:10Z","symbol":"NIM0859080","token_address":"0x0eaddc5d553e6dcf42dea8a72e1a7393ff92e090","type":"artist","uuid":"1afe156e-e80f-40be-8abf-c800a2aac75b"}
album: Boundaries
  type: MusicAlbum
  date published: 2022-11-04
  track: Boundaries
    type: MusicRecording
    duration: PT3M41S
    duration ms: 221571
    explicit: false
    by artist: Evan Langston
    in album: Boundaries
      type: MusicAlbum
      date published: 2022-11-04
    isrc code: QZTAS2291774
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T02:02:52+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8f03a63c46e23d0a06623b402f4da30eaae4e47deef0da40613a472b22cd53c4
    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/QZTAS2291774
    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 0x8f03a63c46e23d0a06623b402f4da30eaae4e47deef0da40613a472b22cd53c4. 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/QZTAS2291774.
      date published: 2026-07-06T07:53:57Z
    audio: Boundaries
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 104.874
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.57
      additional property: Energy
        type: PropertyValue
        value: 0.614
      additional property: Speechiness
        type: PropertyValue
        value: 0.047
      additional property: Acousticness
        type: PropertyValue
        value: 0.523
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.072
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.333
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.227
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Water Damaged
  type: MusicAlbum
  date published: 2023-03-24
album: Expectations
  type: MusicAlbum
  date published: 2023-06-09
album: a lot you are
  type: MusicAlbum
  date published: 2024-10-25
album: Thank You
  type: MusicAlbum
  date published: 2025-08-17