Blackjacket
type: MusicGroup
popularity: 13
followers: 613
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdfedca968c12ad3353320ad069963b0d47775f80816e9b837a95703544a09996
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953657
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953657
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4b173738-67e2-4c2c-ba38-08fa00c2e9d7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4b173738-67e2-4c2c-ba38-08fa00c2e9d7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4b173738-67e2-4c2c-ba38-08fa00c2e9d7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T16:43:25Z
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 0xdfedca968c12ad3353320ad069963b0d47775f80816e9b837a95703544a09996. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4b173738-67e2-4c2c-ba38-08fa00c2e9d7.json and https://artists.proofprofile.net/proofs/artist/4b173738-67e2-4c2c-ba38-08fa00c2e9d7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T16:43:25Z
album: Blood Stains
  type: MusicAlbum
  date published: 2024-07-12
track: Blood Stains
  type: MusicRecording
  duration: PT3M18S
  duration ms: 198890
  explicit: false
  by artist: Blackjacket
  in album: Blood Stains
    type: MusicAlbum
    date published: 2024-07-12
  isrc code: USA2P2438263
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-12T21:01:04+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2baf83b7c51dd5bcecd3a45e6489cc23022ad9e6d572ef2d5307f058b8a63c6a
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957756
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957756
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2P2438263
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-12T21:36:27Z
  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 0x2baf83b7c51dd5bcecd3a45e6489cc23022ad9e6d572ef2d5307f058b8a63c6a. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/USA2P2438263.
    date published: 2026-07-12T21:36:27Z
  audio: Blood Stains
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 125.044
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.524
    additional property: Energy
      type: PropertyValue
      value: 0.989
    additional property: Speechiness
      type: PropertyValue
      value: 0.167
    additional property: Acousticness
      type: PropertyValue
      value: 0
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.103
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.318
    additional property: Loudness (dB)
      type: PropertyValue
      value: -2.147
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Conquering Demons
  type: MusicRecording
  duration: PT3M47S
  duration ms: 227008
  explicit: false
  by artist: Blackjacket
  in album: Conquering Demons
    type: MusicAlbum
    date published: 2024-08-23
  isrc code: USA2P2451192
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T11:27:42+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8ede3faae45fa4808c41bce08ea933af3f8d2c41e35e7089e6b7f2f3038264ee
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956545
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956545
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2P2451192
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T19:59:51Z
  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 0x8ede3faae45fa4808c41bce08ea933af3f8d2c41e35e7089e6b7f2f3038264ee. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USA2P2451192.
    date published: 2026-07-03T19:59:51Z
  audio: Conquering Demons
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 137.075
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.586
    additional property: Energy
      type: PropertyValue
      value: 0.922
    additional property: Speechiness
      type: PropertyValue
      value: 0.145
    additional property: Acousticness
      type: PropertyValue
      value: 0.006
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.084
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.498
    additional property: Loudness (dB)
      type: PropertyValue
      value: -3.101
    additional property: Key Name
    additional property: Mode Name

Key Name
type: PropertyValue
value: B

Mode Name
type: PropertyValue
value: Major