1irst
type: MusicGroup
popularity: 3
followers: 188
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb80d5088418b91bf564a774f4641f0014fe42445eeb1b38707e77c959650844c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f974f003-f6ff-41dd-a24e-8552b5d982d5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f974f003-f6ff-41dd-a24e-8552b5d982d5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f974f003-f6ff-41dd-a24e-8552b5d982d5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
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 0xb80d5088418b91bf564a774f4641f0014fe42445eeb1b38707e77c959650844c. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f974f003-f6ff-41dd-a24e-8552b5d982d5.json and https://artists.proofprofile.net/proofs/artist/f974f003-f6ff-41dd-a24e-8552b5d982d5.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T18:08:38Z
album: mistake
  type: MusicAlbum
  date published: 2021-10-22
album: Vertex (Radio Edit)
  type: MusicAlbum
  date published: 2022-02-25
album: The Nights
  type: MusicAlbum
  date published: 2022-05-20
  track: The Nights
    type: MusicRecording
    duration: PT2M38S
    duration ms: 158095
    explicit: false
    by artist: 1irst
    in album: The Nights
      type: MusicAlbum
      date published: 2022-05-20
    isrc code: ATEK02277277
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T04:08:42+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4a80bf709197304f7a1dc50ae1b60658087ada5171354e9bbb1d2bdc7bc850af
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958660
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958660
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATEK02277277
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T04:21:53Z
    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 0x4a80bf709197304f7a1dc50ae1b60658087ada5171354e9bbb1d2bdc7bc850af. Chain 2 (Bitcoin): anchored in block 958660 (2026-07-19T04:21:53Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATEK02277277 — a six-check JSON result.
      date published: 2026-07-19T04:21:53Z
    audio: The Nights
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 125.901
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.57
      additional property: Energy
        type: PropertyValue
        value: 0.842
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0.047
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.047
      additional property: Liveness
        type: PropertyValue
        value: 0.397
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.608
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.997
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor