Sparta
type: MusicGroup
description: Sparta was a prominent city-state in Laconia in ancient Greece. In antiquity (pre-800 BCE), the state was known as Lacedaemon (), while "Sparta" referred to its capital, a group of villages in the val
popularity: 7
followers: 1040
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb25d213803d107ad9aa7be5d82c40eb2cbd867f3f317a006245d881952c10552
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954055
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954055
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/437398c5-29e4-42c1-a182-c5b1012014a0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/437398c5-29e4-42c1-a182-c5b1012014a0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/437398c5-29e4-42c1-a182-c5b1012014a0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T05:51:24Z
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 0xb25d213803d107ad9aa7be5d82c40eb2cbd867f3f317a006245d881952c10552. Chain 2 (Bitcoin): anchored in block 954055 (2026-06-17T05:51:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/437398c5-29e4-42c1-a182-c5b1012014a0.json and https://artists.proofprofile.net/proofs/artist/437398c5-29e4-42c1-a182-c5b1012014a0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T05:51:24Z
album: Sparta mpya
  type: MusicAlbum
  date published: 2024-03-19
album: Rea zula
  type: MusicAlbum
  date published: 2024-03-19
album: Modimo wa verse
  type: MusicAlbum
  date published: 2024-03-23
  track: Dipolelo
    type: MusicRecording
    duration: PT5M16S
    duration ms: 316000
    explicit: false
    by artist: Sparta
    in album: Modimo wa verse
      type: MusicAlbum
      date published: 2024-03-23
    isrc code: QZHN82476706
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T04:25:08+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x25b0f208cb8fb6a49b14b091df49a3010c591058b352a47059875a4ba4b8b5a2
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956772
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956772
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN82476706
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:01:46Z
    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 0x25b0f208cb8fb6a49b14b091df49a3010c591058b352a47059875a4ba4b8b5a2. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZHN82476706.
      date published: 2026-07-05T10:01:46Z
    audio: Dipolelo
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 125.982
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.826
      additional property: Energy
        type: PropertyValue
        value: 0.584
      additional property: Speechiness
        type: PropertyValue
        value: 0.167
      additional property: Acousticness
        type: PropertyValue
        value: 0.079
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.027
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.781
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.084
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Yes yah yes
  type: MusicAlbum
  date published: 2024-05-14
album: Arena tsotsi ka semuvha
  type: MusicAlbum
  date published: 2024-09-06
album: Wena mama o motho waka
  type: MusicAlbum
  date published: 2024-10-13
album: Ke tshwa bullet
  type: MusicAlbum
  date published: 2024-11-17
album: Ake worry (Special Version)
  type: MusicAlbum
  date published: 2024-12-16
  track: Ake worry - Special Version
    type: MusicRecording
    duration: PT4M16S
    duration ms: 256584
    explicit: false
    by artist: Sparta
    in album: Ake worry (Special Version)
      type: MusicAlbum
      date published: 2024-12-16
    isrc code: QZZ7X2459753
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T12:39:32+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xed6dea8e3876cf56bfdb39f7bfa2c67dc8a6b6ceb326924b00405982e5e2161a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958734
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958734
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7X2459753
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T12:54:58Z
    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 0xed6dea8e3876cf56bfdb39f7bfa2c67dc8a6b6ceb326924b00405982e5e2161a. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/QZZ7X2459753.
      date published: 2026-07-19T12:54:58Z
    audio: Ake worry - Special Version
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 127.062
      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: 0.757
      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
album: Wa ntseba

Energy
type: PropertyValue
value: 0.683

Speechiness
type: PropertyValue
value: 0.142

Acousticness
type: PropertyValue
value: 0.247

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.163

Valence (Positivity)
type: PropertyValue
value: 0.391

Loudness (dB)
type: PropertyValue
value: -8.412

Key Name
type: PropertyValue
value: B

Mode Name
type: PropertyValue
value: Minor

Wa ntseba
type: MusicAlbum
date published: 2025-02-04
track: Wa ntseba
  type: MusicRecording
  duration: PT4M13S
  duration ms: 253283
  explicit: false
  by artist: Sparta
  in album: Wa ntseba
    type: MusicAlbum
    date published: 2025-02-04
  isrc code: QZES52594182
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T12:49:57+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x45676cdfb747203329a4b0d7b11225cf1c73fdac9c900c7250521a235c9e1eae
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958417
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958417
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES52594182
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T12:56:50Z
  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 0x45676cdfb747203329a4b0d7b11225cf1c73fdac9c900c7250521a235c9e1eae. Chain 2 (Bitcoin): anchored in block 958417 (2026-07-17T12:56:50Z), 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/QZES52594182.
    date published: 2026-07-17T12:56:50Z
  audio: Wa ntseba
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 127.069
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.759
    additional property: Energy
      type: PropertyValue
      value: 0.601
    additional property: Speechiness
      type: PropertyValue
      value: 0.088
    additional property: Acousticness
      type: PropertyValue
      value: 0.085
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.033
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.652
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.775
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Minor