Black Stains
type: MusicGroup
genre: indie punk
popularity: 6
followers: 1030
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb62a057150bc24d99f440747c077cee0e1f998a7e906aa739ac6772bdaf18f35
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/4bd13fe7-f2a6-4d04-9bb9-4d25f98dd75f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4bd13fe7-f2a6-4d04-9bb9-4d25f98dd75f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4bd13fe7-f2a6-4d04-9bb9-4d25f98dd75f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb62a057150bc24d99f440747c077cee0e1f998a7e906aa739ac6772bdaf18f35","name":"Black Stains","registered_at":"2026-06-16T16:03:53Z","symbol":"NIM1103468","token_address":"0x9dbf383704a53dd805ff07cf8943b575de6cf32b","type":"artist","uuid":"4bd13fe7-f2a6-4d04-9bb9-4d25f98dd75f"}
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 0xb62a057150bc24d99f440747c077cee0e1f998a7e906aa739ac6772bdaf18f35. 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/4bd13fe7-f2a6-4d04-9bb9-4d25f98dd75f.json and https://artists.proofprofile.net/proofs/artist/4bd13fe7-f2a6-4d04-9bb9-4d25f98dd75f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0xb62a057150bc24d99f440747c077cee0e1f998a7e906aa739ac6772bdaf18f35","name":"Black Stains","registered_at":"2026-06-16T16:03:53Z","symbol":"NIM1103468","token_address":"0x9dbf383704a53dd805ff07cf8943b575de6cf32b","type":"artist","uuid":"4bd13fe7-f2a6-4d04-9bb9-4d25f98dd75f"}
album: Welcome Back (Live Studio Session)
  type: MusicAlbum
  date published: 2019-03-08
album: Welcome Back (Live Studio Session)
  type: MusicAlbum
  date published: 2019-03-15
album: The Moon
  type: MusicAlbum
  date published: 2019-09-20
album: Inside
  type: MusicAlbum
  date published: 2019-10-18
album: Too Many Faces
  type: MusicAlbum
  date published: 2020-03-27
album: Sick
  type: MusicAlbum
  date published: 2021-08-26
album: ERA
  type: MusicAlbum
  date published: 2022-04-29
album: RAT
  type: MusicAlbum
  date published: 2022-06-24
album: #SLAY
  type: MusicAlbum
  date published: 2022-08-05
album: CURSED LIGHTS
  type: MusicAlbum
  date published: 2022-08-19
album: Fading Away
  type: MusicAlbum
  date published: 2023-02-14
album: My Last Goodbye
  type: MusicAlbum
  date published: 2024-03-08
album: Tragedy
  type: MusicAlbum
  date published: 2024-05-31
album: Cold Water
  type: MusicAlbum
  date published: 2024-11-01
  track: Cold Water
    type: MusicRecording
    duration: PT3M28S
    duration ms: 208560
    explicit: false
    by artist: Black Stains
    in album: Cold Water
      type: MusicAlbum
      date published: 2024-11-01
    genre: indie punk
    isrc code: TCAIW2438810
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T05:58:55+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xdf80ba2fc74583b040a6f835a3795cecca21fc69c6f8c795075eaed8294be4f1
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956656
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956656
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAIW2438810
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T14:03:39Z
    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 0xdf80ba2fc74583b040a6f835a3795cecca21fc69c6f8c795075eaed8294be4f1. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/TCAIW2438810.
      date published: 2026-07-04T14:03:39Z
    audio: Cold Water
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 124.996
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.414
      additional property: Energy
        type: PropertyValue
        value: 0.91
      additional property: Speechiness
        type: PropertyValue
        value: 0.044
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.874
      additional property: Liveness
        type: PropertyValue
        value: 0.089
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.056
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.644
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major