Scumback
type: MusicGroup
genre: groove metal
popularity: 6
followers: 702
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9c5dd45afa0121c5601df4b15ebabe1d1b8ee669a9c2f259451ce27063f220e7
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/6b8f97ec-be92-446a-8ba8-827cd959d016.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6b8f97ec-be92-446a-8ba8-827cd959d016.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6b8f97ec-be92-446a-8ba8-827cd959d016
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 0x9c5dd45afa0121c5601df4b15ebabe1d1b8ee669a9c2f259451ce27063f220e7. 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/6b8f97ec-be92-446a-8ba8-827cd959d016.json and https://artists.proofprofile.net/proofs/artist/6b8f97ec-be92-446a-8ba8-827cd959d016.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
album: Eat Glass
  type: MusicAlbum
  date published: 2019-06-09
album: Get Well Soon
  type: MusicAlbum
  date published: 2019-06-27
album: Blast from the Past
  type: MusicAlbum
  date published: 2020-08-13
album: Orange Krunch
  type: MusicAlbum
  date published: 2021-12-31
album: Orange Krunch
  type: MusicAlbum
  date published: 2021-12-31
album: The End of the Road
  type: MusicAlbum
  date published: 2022-08-08
album: Sons of a Witch
  type: MusicAlbum
  date published: 2022-08-26
album: Big Pig
  type: MusicAlbum
  date published: 2023-09-12
  track: Big Pig
    type: MusicRecording
    duration: PT2M21S
    duration ms: 141937
    explicit: true
    by artist: Scumback
    in album: Big Pig
      type: MusicAlbum
      date published: 2023-09-12
    genre: groove metal
    isrc code: TCAHK2373578
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T09:41:03+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xab2411dcbee4f74df0e1c6c9358e00f30d86a9bfac98c3d5c7396bafc7dcd6c5
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958276
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958276
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAHK2373578
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T10:20:17Z
    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 0xab2411dcbee4f74df0e1c6c9358e00f30d86a9bfac98c3d5c7396bafc7dcd6c5. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/TCAHK2373578.
      date published: 2026-07-16T10:20:17Z
    audio: Big Pig
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 160.029
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.399
      additional property: Energy
        type: PropertyValue
        value: 0.992
      additional property: Speechiness
        type: PropertyValue
        value: 0.064
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.093
      additional property: Liveness
        type: PropertyValue
        value: 0.332
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.656
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.752
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Spacetrail Wanderers (Original Comic Book Soundtrack)
  type: MusicAlbum
  date published: 2024-04-05
album: Invincible
  type: MusicAlbum
  date published: 2025-07-25
album: Perfect Blue
  type: MusicAlbum
  date published: 2025-08-08