Stubborn
type: MusicGroup
popularity: 9
followers: 1947
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdb47b673e13150dc153b8d8856a331cc7766a94f8a67045a520a1b10fabfd48d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954017
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954017
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/371dec72-03c7-4971-ae23-73bc2a40a875.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/371dec72-03c7-4971-ae23-73bc2a40a875.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/371dec72-03c7-4971-ae23-73bc2a40a875
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T23:38:33Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb47b673e13150dc153b8d8856a331cc7766a94f8a67045a520a1b10fabfd48d. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/371dec72-03c7-4971-ae23-73bc2a40a875.json and https://artists.proofprofile.net/proofs/artist/371dec72-03c7-4971-ae23-73bc2a40a875.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
album: Grab the Key
  type: MusicAlbum
  date published: 2012-03-15
album: 6041
  type: MusicAlbum
  date published: 2012-10-31
album: The Ache of Love
  type: MusicAlbum
  date published: 2014-03-14
album: The Ache of Love
  type: MusicAlbum
  date published: 2014-03-14
album: Positive
  type: MusicAlbum
  date published: 2015-03-23
album: Positive
  type: MusicAlbum
  date published: 2015-03-23
album: Black Bats
  type: MusicAlbum
  date published: 2016-02-29
album: Black Bats
  type: MusicAlbum
  date published: 2016-02-29
album: Black Bats
  type: MusicAlbum
  date published: 2016-04-13
album: Let's Start a Fire
  type: MusicAlbum
  date published: 2017-09-06
album: Let's Start a Fire
  type: MusicAlbum
  date published: 2017-09-06
album: Let's Start a Fire
  type: MusicAlbum
  date published: 2017-09-06
album: Let's Start a Fire
  type: MusicAlbum
  date published: 2018-05-07
  track: Let's Start a Fire
    type: MusicRecording
    duration: PT3M17S
    duration ms: 197400
    explicit: false
    by artist: Stubborn
    in album: Let's Start a Fire
      type: MusicAlbum
      date published: 2018-05-07
    isrc code: HUA611801151
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T11:33:33+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xaa01d6dbcb7d0c6d0af5b9bdc5bda0931ccfcb34cbd96af7e3305521d1f69c0e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956822
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956822
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA611801151
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T18:48:28Z
    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 0xaa01d6dbcb7d0c6d0af5b9bdc5bda0931ccfcb34cbd96af7e3305521d1f69c0e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/HUA611801151.
      date published: 2026-07-05T18:48:28Z
    audio: Let's Start a Fire
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 123.344
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.314
      additional property: Energy
        type: PropertyValue
        value: 0.985
      additional property: Speechiness
        type: PropertyValue
        value: 0.114
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.126
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.303
      additional property: Loudness (dB)
        type: PropertyValue
        value: -2.601
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Let's Start a Fire
  type: MusicAlbum
  date published: 2018-05-07
album: NARROW-MINDED
  type: MusicAlbum
  date published: 2020-08-04
album: NARROW-MINDED
  type: MusicAlbum
  date published: 2020-08-04
album: Annihilation
  type: MusicAlbum
  date published: 2021-05-28
album: Annihilation
  type: MusicAlbum
  date published: 2021-05-28
album: Daydreamer
  type: MusicAlbum
  date published: 2021-09-10
album: Daydreamer
  type: MusicAlbum
  date published: 2021-09-10
album: Vortex
  type: MusicAlbum
  date published: 2023-05-12