Cobain
type: MusicGroup
popularity: 2
followers: 226
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbe1a6cb8b95204c46cefa25fbe03c6a07a49fcb9cb164a96772a2d3b79ec13f4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6fd4dcf7-ae96-4a69-bfa9-f2fe64041567.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6fd4dcf7-ae96-4a69-bfa9-f2fe64041567.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6fd4dcf7-ae96-4a69-bfa9-f2fe64041567
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
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 0xbe1a6cb8b95204c46cefa25fbe03c6a07a49fcb9cb164a96772a2d3b79ec13f4. 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/6fd4dcf7-ae96-4a69-bfa9-f2fe64041567.json and https://artists.proofprofile.net/proofs/artist/6fd4dcf7-ae96-4a69-bfa9-f2fe64041567.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
album: IDK
  type: MusicAlbum
  date published: 2017-09-30
album: Now I'm Back
  type: MusicAlbum
  date published: 2017-12-24
album: Notice
  type: MusicAlbum
  date published: 2018-09-16
album: Do You
  type: MusicAlbum
  date published: 2018-09-30
album: Pussy Money Good Grades
  type: MusicAlbum
  date published: 2018-12-14
album: Break
  type: MusicAlbum
  date published: 2019-09-06
album: While the Iron Is Hot
  type: MusicAlbum
  date published: 2019-10-30
album: Well Rounded
  type: MusicAlbum
  date published: 2020-05-13
album: Love Sold Separately
  type: MusicAlbum
  date published: 2020-08-14
album: You're Supposed to Feel It
  type: MusicAlbum
  date published: 2021-01-08
album: The Top
  type: MusicAlbum
  date published: 2022-03-30
album: Hand Over Fist
  type: MusicAlbum
  date published: 2022-03-31
album: SEEINFRARED
  type: MusicAlbum
  date published: 2022-04-17
album: New Friends
  type: MusicAlbum
  date published: 2022-10-06
album: Mad Day
  type: MusicAlbum
  date published: 2023-09-01
album: Mad Day (Radio Edit)
  type: MusicAlbum
  date published: 2023-09-01
album: Mad Day
  type: MusicAlbum
  date published: 2023-09-01
album: Mad Day
  type: MusicAlbum
  date published: 2023-10-09
album: Safe Sex
  type: MusicAlbum
  date published: 2023-10-27
album: Catch You
  type: MusicAlbum
  date published: 2024-04-23
album: LEFT 4 DEAD
  type: MusicAlbum
  date published: 2024-11-15
album: For Crying Out Loud
  type: MusicAlbum
  date published: 2024-11-27
album: Salutations
  type: MusicAlbum
  date published: 2025-07-11
  track: Salutations
    type: MusicRecording
    duration: PT2M2S
    duration ms: 122830
    explicit: true
    by artist: Cobain
    in album: Salutations
      type: MusicAlbum
      date published: 2025-07-11
    isrc code: QZXLZ2524104
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T04:15:53+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x295c1e4597dfad09f5e81616fb4f14cedbb78e6d23c4733acdff644316a17417
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959100
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959100
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZXLZ2524104
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T05:29:55Z
    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 0x295c1e4597dfad09f5e81616fb4f14cedbb78e6d23c4733acdff644316a17417. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/QZXLZ2524104.
      date published: 2026-07-22T05:29:55Z
    audio: Salutations
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 150.704
      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: 0.704
      additional property: Energy
        type: PropertyValue
        value: 0.346
      additional property: Speechiness
        type: PropertyValue
        value: 0.185
      additional property: Acousticness
        type: PropertyValue
        value: 0.741
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.002
      additional property: Liveness
        type: PropertyValue
        value: 0.108
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.554
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.607
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: No Handouts 2
  type: MusicAlbum
  date published: 2025-10-24