Hollow Ground
type: MusicGroup
genre: heavy metal
genre: speed metal
popularity: 21
followers: 6931
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb824e80f72398a20000544c3ae3ba01a9f25499c21aa683a017c3a0b24633127
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/555b3fb5-7416-4dad-ab50-ee4c1d2d0838.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/555b3fb5-7416-4dad-ab50-ee4c1d2d0838.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/555b3fb5-7416-4dad-ab50-ee4c1d2d0838
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb824e80f72398a20000544c3ae3ba01a9f25499c21aa683a017c3a0b24633127","name":"Hollow Ground","registered_at":"2026-06-11T21:00:13Z","symbol":"NIM0110163","token_address":"0x9eff064289d2d1a68b44e356f4b5f7e5f642692d","type":"artist","uuid":"555b3fb5-7416-4dad-ab50-ee4c1d2d0838"}
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 0xb824e80f72398a20000544c3ae3ba01a9f25499c21aa683a017c3a0b24633127. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/555b3fb5-7416-4dad-ab50-ee4c1d2d0838.json and https://artists.proofprofile.net/proofs/artist/555b3fb5-7416-4dad-ab50-ee4c1d2d0838.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
  text: {"copyright_id":"0xb824e80f72398a20000544c3ae3ba01a9f25499c21aa683a017c3a0b24633127","name":"Hollow Ground","registered_at":"2026-06-11T21:00:13Z","symbol":"NIM0110163","token_address":"0x9eff064289d2d1a68b44e356f4b5f7e5f642692d","type":"artist","uuid":"555b3fb5-7416-4dad-ab50-ee4c1d2d0838"}
album: Cold Reality
  type: MusicAlbum
  date published: 2005-03-29
album: Warlord
  type: MusicAlbum
  date published: 2015-01-06
  track: Don't Chase the Dragon
    type: MusicRecording
    duration: PT3M48S
    duration ms: 228560
    explicit: false
    by artist: Hollow Ground
    in album: Warlord
      type: MusicAlbum
      date published: 2015-01-06
    genre: heavy metal
    genre: speed metal
    isrc code: DEQN41400084
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T05:07:22+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf399604feca1ad31182559cf087462025584d89817be614926cffba2336f7814
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958104
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958104
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQN41400084
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T05:34:05Z
    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 0xf399604feca1ad31182559cf087462025584d89817be614926cffba2336f7814. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/DEQN41400084.
      date published: 2026-07-15T05:34:05Z
    audio: Don't Chase the Dragon
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 126.946
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.41
      additional property: Energy
        type: PropertyValue
        value: 0.778
      additional property: Speechiness
        type: PropertyValue
        value: 0.123
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.109
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.659
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.063
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: The Holy One
    type: MusicRecording
    duration: PT3M43S
    duration ms: 223013
    explicit: false
    by artist: Hollow Ground
    in album: Warlord
      type: MusicAlbum
      date published: 2015-01-06
    genre: heavy metal
    genre: speed metal
    isrc code: DEQN41400086
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T15:59:10+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6d110dc7c7854f586419f4fd1bb4b156da2fc47b94aaa1e489cd8e1f6b32973f
    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/DEQN41400086
    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 0x6d110dc7c7854f586419f4fd1bb4b156da2fc47b94aaa1e489cd8e1f6b32973f. 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/DEQN41400086.
      date published: 2026-07-03T19:59:51Z
    audio: The Holy One
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 167.827
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.241
      additional property: Energy
        type: PropertyValue
        value: 0.885
      additional property: Speechiness
        type: PropertyValue
        value: 0.079
      additional property: Acousticness
        type: PropertyValue
        value: 0.003
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.716
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
  track: Rock to Love

Liveness
type: PropertyValue
value: 0.203

Valence (Positivity)
type: PropertyValue
value: 0.276

Loudness (dB)
type: PropertyValue
value: -7.963

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Major

Rock to Love
type: MusicRecording
duration: PT3M28S
duration ms: 208973
explicit: false
by artist: Hollow Ground
in album: Warlord
  type: MusicAlbum
  date published: 2015-01-06
genre: heavy metal
genre: speed metal
isrc code: DEQN41400087
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-15T15:19:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x35030a74512dc604b70276cfafd482c08caadc4e5c7ce07b259eb4a0d82e750a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958170
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958170
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQN41400087
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-15T18:21:42Z
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 0x35030a74512dc604b70276cfafd482c08caadc4e5c7ce07b259eb4a0d82e750a. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:21:42Z), 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/DEQN41400087.
  date published: 2026-07-15T18:21:42Z
audio: Rock to Love
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 146.251
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.401
  additional property: Energy
    type: PropertyValue
    value: 0.867
  additional property: Speechiness
    type: PropertyValue
    value: 0.062
  additional property: Acousticness
    type: PropertyValue
    value: 0
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.298
  additional property: Liveness
    type: PropertyValue
    value: 0.132
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.584
  additional property: Loudness (dB)
    type: PropertyValue
    value: -6.411
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor