Last Time
type: MusicGroup
popularity: 4
followers: 26
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x10bcb8b37154a58d6fa52f7f5855ab33298380245f254f59a15a3f908ec12452
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4b316a74-2b1d-4be4-8a03-788d3a4f36f3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4b316a74-2b1d-4be4-8a03-788d3a4f36f3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4b316a74-2b1d-4be4-8a03-788d3a4f36f3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x10bcb8b37154a58d6fa52f7f5855ab33298380245f254f59a15a3f908ec12452","name":"Last Time","registered_at":"2026-06-16T15:50:01Z","symbol":"NIM1100167","token_address":"0xe3b6fa3f0a27c625e0befebeef81cab8dcafdb69","type":"artist","uuid":"4b316a74-2b1d-4be4-8a03-788d3a4f36f3"}
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 0x10bcb8b37154a58d6fa52f7f5855ab33298380245f254f59a15a3f908ec12452. 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/4b316a74-2b1d-4be4-8a03-788d3a4f36f3.json and https://artists.proofprofile.net/proofs/artist/4b316a74-2b1d-4be4-8a03-788d3a4f36f3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x10bcb8b37154a58d6fa52f7f5855ab33298380245f254f59a15a3f908ec12452","name":"Last Time","registered_at":"2026-06-16T15:50:01Z","symbol":"NIM1100167","token_address":"0xe3b6fa3f0a27c625e0befebeef81cab8dcafdb69","type":"artist","uuid":"4b316a74-2b1d-4be4-8a03-788d3a4f36f3"}
album: It's Time (2021 Version)
  type: MusicAlbum
  date published: 2021-07-27
  track: Forever (intro ends at 2:29)
    type: MusicRecording
    duration: PT6M8S
    duration ms: 368026
    explicit: false
    by artist: Last Time
    in album: It's Time (2021 Version)
      type: MusicAlbum
      date published: 2021-07-27
    isrc code: QZK6J2133741
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T02:09:24+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7579fd865377fa2b1075da53a373f7bce18ed538ffe11e1bbaf5f5c3f4d6d5cc
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958350
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958350
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6J2133741
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T02:31:22Z
    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 0x7579fd865377fa2b1075da53a373f7bce18ed538ffe11e1bbaf5f5c3f4d6d5cc. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/QZK6J2133741.
      date published: 2026-07-17T02:31:22Z
    audio: Forever (intro ends at 2:29)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 150.708
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.304
      additional property: Energy
        type: PropertyValue
        value: 0.84
      additional property: Speechiness
        type: PropertyValue
        value: 0.05
      additional property: Acousticness
        type: PropertyValue
        value: 0.006
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.868
      additional property: Liveness
        type: PropertyValue
        value: 0.053
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.171
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.652
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: AMATEUR ACT
  type: MusicAlbum
  date published: 2025-11-04
album: TimeLapse
  type: MusicAlbum
  date published: 2025-11-11