Mervyn Obiero
type: MusicGroup
genre: gengetone
popularity: 4
followers: 925
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x66f38aaf5f4b066c041267d31d49c98de969ebe5be7f2112fc04e1495314db94
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8435f5ab-2d58-4163-bfc9-b0591cb72152.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8435f5ab-2d58-4163-bfc9-b0591cb72152.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8435f5ab-2d58-4163-bfc9-b0591cb72152
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x66f38aaf5f4b066c041267d31d49c98de969ebe5be7f2112fc04e1495314db94","name":"Mervyn Obiero","registered_at":"2026-06-17T11:42:04Z","symbol":"NIM1384517","token_address":"0xb8b98cd7e5f0491a9a28a2dd8c232e088632a27c","type":"artist","uuid":"8435f5ab-2d58-4163-bfc9-b0591cb72152"}
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 0x66f38aaf5f4b066c041267d31d49c98de969ebe5be7f2112fc04e1495314db94. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8435f5ab-2d58-4163-bfc9-b0591cb72152.json and https://artists.proofprofile.net/proofs/artist/8435f5ab-2d58-4163-bfc9-b0591cb72152.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x66f38aaf5f4b066c041267d31d49c98de969ebe5be7f2112fc04e1495314db94","name":"Mervyn Obiero","registered_at":"2026-06-17T11:42:04Z","symbol":"NIM1384517","token_address":"0xb8b98cd7e5f0491a9a28a2dd8c232e088632a27c","type":"artist","uuid":"8435f5ab-2d58-4163-bfc9-b0591cb72152"}
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album: Kujia
  type: MusicAlbum
  date published: 2025-08-20
  track: Kujia
    type: MusicRecording
    duration: PT1M34S
    duration ms: 94125
    explicit: true
    by artist: Mervyn Obiero
    in album: Kujia
      type: MusicAlbum
      date published: 2025-08-20
    genre: gengetone
    isrc code: GXHG92502117
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T22:05:50+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x1114b54389163ccc9f23d535ef4c71e67ca44769cafb0cb6acf174802d59b25d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956725
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956725
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GXHG92502117
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: Kujia
album: Mama Fua

OTSTimestamp
type: PropertyValue
value: 2026-07-05T01:12:41Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1114b54389163ccc9f23d535ef4c71e67ca44769cafb0cb6acf174802d59b25d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GXHG92502117.
date published: 2026-07-05T01:12:41Z

Kujia
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 96.634
additional property: Musical Key
  type: PropertyValue
  value: 9
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.664
additional property: Energy
  type: PropertyValue
  value: 0.66
additional property: Speechiness
  type: PropertyValue
  value: 0.314
additional property: Acousticness
  type: PropertyValue
  value: 0.074
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.117
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.503
additional property: Loudness (dB)
  type: PropertyValue
  value: -6.631
additional property: Key Name
  type: PropertyValue
  value: A
additional property: Mode Name
  type: PropertyValue
  value: Major

Mama Fua
type: MusicAlbum
date published: 2025-09-26