Lencho Gemechu
type: MusicGroup
popularity: 4
followers: 6474
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3189f558c521470816e023f781944e3def1ce3d32f4a5f4107b86855aad7d1f8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/46d0f605-a97e-4d9c-91d8-4b33179c6c97.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/46d0f605-a97e-4d9c-91d8-4b33179c6c97.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/46d0f605-a97e-4d9c-91d8-4b33179c6c97
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3189f558c521470816e023f781944e3def1ce3d32f4a5f4107b86855aad7d1f8","name":"Lencho Gemechu","registered_at":"2026-06-16T14:15:05Z","symbol":"NIM1077502","token_address":"0x40f9cb4e1d69450eb1149d1bd244c0cd28361b47","type":"artist","uuid":"46d0f605-a97e-4d9c-91d8-4b33179c6c97"}
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 0x3189f558c521470816e023f781944e3def1ce3d32f4a5f4107b86855aad7d1f8. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/46d0f605-a97e-4d9c-91d8-4b33179c6c97.json and https://artists.proofprofile.net/proofs/artist/46d0f605-a97e-4d9c-91d8-4b33179c6c97.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x3189f558c521470816e023f781944e3def1ce3d32f4a5f4107b86855aad7d1f8","name":"Lencho Gemechu","registered_at":"2026-06-16T14:15:05Z","symbol":"NIM1077502","token_address":"0x40f9cb4e1d69450eb1149d1bd244c0cd28361b47","type":"artist","uuid":"46d0f605-a97e-4d9c-91d8-4b33179c6c97"}
album: Namummaa
  type: MusicAlbum
  date published: 2020-05-16
album: Saglii
  type: MusicAlbum
  date published: 2021-09-04
  track: Saglii
    type: MusicRecording
    duration: PT5M8S
    duration ms: 308766
    explicit: false
    by artist: Lencho Gemechu
    in album: Saglii
      type: MusicAlbum
      date published: 2021-09-04
    isrc code: QZMEP2102393
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T05:39:35+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3c5edcf48c67f4ffe8867fae6e19108b9f4e96885bde2dec6fd645ca21fb0bc2
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958246
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958246
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEP2102393
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T05:55:09Z
    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 0x3c5edcf48c67f4ffe8867fae6e19108b9f4e96885bde2dec6fd645ca21fb0bc2. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/QZMEP2102393.
      date published: 2026-07-16T05:55:09Z
    audio: Saglii
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 123.923
      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: 0.919
      additional property: Energy
        type: PropertyValue
        value: 0.625
      additional property: Speechiness
        type: PropertyValue
        value: 0.059
      additional property: Acousticness
        type: PropertyValue
        value: 0.358
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.307
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.935
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.606
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major