Offseventeen
type: MusicGroup
popularity: 2
followers: 33
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe8c90944f242ad74ef02ed7f705b439cabfb3a837676200574f195166d70cd53
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dfe89585-3b98-49d6-962c-b9c0d435106b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dfe89585-3b98-49d6-962c-b9c0d435106b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dfe89585-3b98-49d6-962c-b9c0d435106b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
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 0xe8c90944f242ad74ef02ed7f705b439cabfb3a837676200574f195166d70cd53. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dfe89585-3b98-49d6-962c-b9c0d435106b.json and https://artists.proofprofile.net/proofs/artist/dfe89585-3b98-49d6-962c-b9c0d435106b.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T07:29:20Z
album: Nightmares
  type: MusicAlbum
  date published: 2019-01-01
  track: Nightmares
    type: MusicRecording
    duration: PT3M31S
    duration ms: 211826
    explicit: true
    by artist: Offseventeen
    in album: Nightmares
      type: MusicAlbum
      date published: 2019-01-01
    isrc code: QZ4JJ1927244
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T11:13:12+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2a22c093f7deda94a4085c5cc1160b181216772281036132489edb2040c0b434
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959001
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959001
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ4JJ1927244
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T11:41:42Z
    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 0x2a22c093f7deda94a4085c5cc1160b181216772281036132489edb2040c0b434. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/QZ4JJ1927244 — a six-check JSON result.
      date published: 2026-07-21T11:41:42Z
    audio: Nightmares
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 73.006
      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: 0.744
      additional property: Energy
        type: PropertyValue
        value: 0.187
      additional property: Speechiness
        type: PropertyValue
        value: 0.056
      additional property: Acousticness
        type: PropertyValue
        value: 0.568
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.006
      additional property: Liveness
        type: PropertyValue
        value: 0.104
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.126
      additional property: Loudness (dB)
        type: PropertyValue
        value: -16.074
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Bleeding Tears
  type: MusicAlbum
  date published: 2019-01-07