Jabu Nkosi's City Jazz 7
type: MusicGroup
popularity: 3
followers: 165
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x45542ab33f6d2462f3f29c1209db91c0f31560118d2cf56f729b58b8cdf43c1f
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/18f39950-e371-46f3-baa5-a26bc6944b98.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/18f39950-e371-46f3-baa5-a26bc6944b98.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/18f39950-e371-46f3-baa5-a26bc6944b98
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:53:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x45542ab33f6d2462f3f29c1209db91c0f31560118d2cf56f729b58b8cdf43c1f","name":"Jabu Nkosi's City Jazz 7","registered_at":"2026-06-15T22:06:28Z","symbol":"NIM0846261","token_address":"0x6b80d0727a7f6fc08e86239d0b2dd9a5d58d79cb","type":"artist","uuid":"18f39950-e371-46f3-baa5-a26bc6944b98"}
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 0x45542ab33f6d2462f3f29c1209db91c0f31560118d2cf56f729b58b8cdf43c1f. 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/18f39950-e371-46f3-baa5-a26bc6944b98.json and https://artists.proofprofile.net/proofs/artist/18f39950-e371-46f3-baa5-a26bc6944b98.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0x45542ab33f6d2462f3f29c1209db91c0f31560118d2cf56f729b58b8cdf43c1f","name":"Jabu Nkosi's City Jazz 7","registered_at":"2026-06-15T22:06:28Z","symbol":"NIM0846261","token_address":"0x6b80d0727a7f6fc08e86239d0b2dd9a5d58d79cb","type":"artist","uuid":"18f39950-e371-46f3-baa5-a26bc6944b98"}
album: Remembering Bra Zacks
  type: MusicAlbum
  date published: 1997-04-18
album: Remembering Bra Zacks
  type: MusicAlbum
  date published: 1997-04-18
album: Remembering Bra Zacks
  type: MusicAlbum
  date published: 1997-04-21
track: Swazi Twist
  type: MusicRecording
  duration: PT6M41S
  duration ms: 401546
  explicit: false
  by artist: Jabu Nkosi's City Jazz 7
  in album: South African Jazz Giants, Vol. 4
    type: MusicAlbum
    date published: 2013-02-01
  isrc code: ZAC030000457
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-29T16:30:17+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xce3ed872fea4efadf42145a892cfab1cff41dbfe9f13fad0ccbec5ac477587d4
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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    value: 960138
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960138
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAC030000457
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-29T19:35:34Z
  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 0xce3ed872fea4efadf42145a892cfab1cff41dbfe9f13fad0ccbec5ac477587d4. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ZAC030000457.
    date published: 2026-07-29T19:35:34Z
  audio: Swazi Twist
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 109.133
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
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      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.59
    additional property: Energy
      type: PropertyValue
      value: 0.5
    additional property: Speechiness
      type: PropertyValue
      value: 0.037
    additional property: Acousticness
      type: PropertyValue
      value: 0.063
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.487
    additional property: Liveness
      type: PropertyValue
      value: 0.151
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.714
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.494
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major