Post War Years
type: MusicGroup
popularity: 8
followers: 2231
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x242897d53907a5e1e8e3532cda8ba2b4b382701776331e1ac60c0338c57502a6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a8073c93-8819-49f4-b470-b4a3a2930d65.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a8073c93-8819-49f4-b470-b4a3a2930d65.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a8073c93-8819-49f4-b470-b4a3a2930d65
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x242897d53907a5e1e8e3532cda8ba2b4b382701776331e1ac60c0338c57502a6","name":"Post War Years","registered_at":"2026-06-20T08:20:05Z","symbol":"NIM1564072","token_address":"0xc510399055abce04d406950b9cf6190d0876d66e","type":"artist","uuid":"a8073c93-8819-49f4-b470-b4a3a2930d65"}
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 0x242897d53907a5e1e8e3532cda8ba2b4b382701776331e1ac60c0338c57502a6. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a8073c93-8819-49f4-b470-b4a3a2930d65.json and https://artists.proofprofile.net/proofs/artist/a8073c93-8819-49f4-b470-b4a3a2930d65.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0x242897d53907a5e1e8e3532cda8ba2b4b382701776331e1ac60c0338c57502a6","name":"Post War Years","registered_at":"2026-06-20T08:20:05Z","symbol":"NIM1564072","token_address":"0xc510399055abce04d406950b9cf6190d0876d66e","type":"artist","uuid":"a8073c93-8819-49f4-b470-b4a3a2930d65"}
album: Soul Owl
  type: MusicAlbum
  date published: 2009-01-01
album: The Greats and the Happenings
  type: MusicAlbum
  date published: 2009-01-01
album: The Greats and the Happenings
  type: MusicAlbum
  date published: 2009-05-18
album: Soul Owl
  type: MusicAlbum
  date published: 2009-11-02
album: All Eyes
  type: MusicAlbum
  date published: 2011-12-12
  track: All Eyes
    type: MusicRecording
    duration: PT4M3S
    duration ms: 243613
    explicit: false
    by artist: Post War Years
    in album: All Eyes
      type: MusicAlbum
      date published: 2011-12-12
    isrc code: USA371547499
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T20:52:22+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x078f0a170cd18f6bd6821fab7fbe451d9a1ef23c97994278c8cb589bc2eef977
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957756
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957756
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA371547499
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T21:36:27Z
    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 0x078f0a170cd18f6bd6821fab7fbe451d9a1ef23c97994278c8cb589bc2eef977. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/USA371547499.
      date published: 2026-07-12T21:36:27Z
    audio: All Eyes
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 89
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.443
      additional property: Energy
        type: PropertyValue
        value: 0.88
      additional property: Speechiness
        type: PropertyValue
        value: 0.049
      additional property: Acousticness
        type: PropertyValue
        value: 0.034
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.338
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.222
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.89
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Glass House EP
  type: MusicAlbum
  date published: 2012-07-15
album: The Bell EP
  type: MusicAlbum
  date published: 2012-10-28
album: Galapagos
  type: MusicAlbum
  date published: 2013-02-25
album: Galapagos (Deluxe)
  type: MusicAlbum
  date published: 2013-02-25
album: Be Someone
  type: MusicAlbum
  date published: 2013-06-21