Underground AB
type: MusicGroup
popularity: 9
followers: 566
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x564737f9b7db04f393d9c1a9208ecf6b1375e5173e0ee029aedbc4f0de3ad22c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953909
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953909
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/149a1005-0ced-4248-91c4-72cb0a1b6e24.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/149a1005-0ced-4248-91c4-72cb0a1b6e24.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/149a1005-0ced-4248-91c4-72cb0a1b6e24
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:53:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x564737f9b7db04f393d9c1a9208ecf6b1375e5173e0ee029aedbc4f0de3ad22c","name":"Underground AB","registered_at":"2026-06-15T20:38:16Z","symbol":"NIM0825241","token_address":"0xbf4311237caf7c1bc4d6f4f23b4111627df3c431","type":"artist","uuid":"149a1005-0ced-4248-91c4-72cb0a1b6e24"}
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 0x564737f9b7db04f393d9c1a9208ecf6b1375e5173e0ee029aedbc4f0de3ad22c. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/149a1005-0ced-4248-91c4-72cb0a1b6e24.json and https://artists.proofprofile.net/proofs/artist/149a1005-0ced-4248-91c4-72cb0a1b6e24.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0x564737f9b7db04f393d9c1a9208ecf6b1375e5173e0ee029aedbc4f0de3ad22c","name":"Underground AB","registered_at":"2026-06-15T20:38:16Z","symbol":"NIM0825241","token_address":"0xbf4311237caf7c1bc4d6f4f23b4111627df3c431","type":"artist","uuid":"149a1005-0ced-4248-91c4-72cb0a1b6e24"}
album: Mor Baare Ma
  type: MusicAlbum
  date published: 2019-11-25
album: Hakikat
  type: MusicAlbum
  date published: 2020-08-05
album: MACHA DEBO KA
  type: MusicAlbum
  date published: 2021-12-13
album: DEKH LEBO TURI MN LA
  type: MusicAlbum
  date published: 2022-03-05
album: Gao Ke Maati
  type: MusicAlbum
  date published: 2023-01-25
album: Shaheb
  type: MusicAlbum
  date published: 2023-06-09
album: Peeyan De Bhai
  type: MusicAlbum
  date published: 2023-06-09
album: Sakbe Re
  type: MusicAlbum
  date published: 2023-06-09
album: Bhak Hoge Bhai
  type: MusicAlbum
  date published: 2023-09-16
album: Basti Ma
  type: MusicAlbum
  date published: 2024-11-15
  track: Basti Ma
    type: MusicRecording
    duration: PT3M8S
    duration ms: 188307
    explicit: false
    by artist: Underground AB
    in album: Basti Ma
      type: MusicAlbum
      date published: 2024-11-15
    isrc code: DGA0R2456389
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T08:35:28+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb556124e0445cf79b677308b872c498f7db8cdf8c1b042642ddcf7a4e54e3e9f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957680
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957680
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0R2456389
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T09:07:22Z
    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 0xb556124e0445cf79b677308b872c498f7db8cdf8c1b042642ddcf7a4e54e3e9f. Chain 2 (Bitcoin): anchored in block 957680 (2026-07-12T09:07:22Z), 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/DGA0R2456389.
      date published: 2026-07-12T09:07:22Z
    audio: Basti Ma
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 130.041
      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: 0.786
      additional property: Energy
        type: PropertyValue
        value: 0.574
      additional property: Speechiness
        type: PropertyValue
        value: 0.366
      additional property: Acousticness
        type: PropertyValue
        value: 0.278
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.285
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.806
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.192
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Hamar Chhattisgarh
  type: MusicAlbum
  date published: 2025-07-13
  track: Hamar Chhattisgarh
    type: MusicRecording
    duration: PT2M47S
    duration ms: 167271
    explicit: false
    by artist: Underground AB
    in album: Hamar Chhattisgarh
      type: MusicAlbum
      date published: 2025-07-13
    isrc code: INP1L2402313
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-13T01:11:07+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x93d8d691cefa26c651f69012dc806a6e0df39456e8cfde774ab8950b65077c71
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957785
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957785
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INP1L2402313
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-13T01:55:31Z
    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 0x93d8d691cefa26c651f69012dc806a6e0df39456e8cfde774ab8950b65077c71. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/INP1L2402313.
      date published: 2026-07-13T01:55:31Z
    audio: Hamar Chhattisgarh
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 99.018
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
      additional property: Time Signature
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Mode (Major/Minor)
type: PropertyValue
value: 1

Time Signature
type: PropertyValue
value: 4

Danceability
type: PropertyValue
value: 0.824

Energy
type: PropertyValue
value: 0.614

Speechiness
type: PropertyValue
value: 0.249

Acousticness
type: PropertyValue
value: 0.074

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.057

Valence (Positivity)
type: PropertyValue
value: 0.589

Loudness (dB)
type: PropertyValue
value: -6.928

Key Name
type: PropertyValue
value: C#

Mode Name
type: PropertyValue
value: Major