Yohanna Seifu
type: MusicGroup
popularity: 31
followers: 1431
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0fae7197bf21aaec83c906d00de716c6a5860aeb95e08575c6b6af7f9f07e8c3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2c3e7b17-acd2-4adb-b885-c544de39369f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2c3e7b17-acd2-4adb-b885-c544de39369f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2c3e7b17-acd2-4adb-b885-c544de39369f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0fae7197bf21aaec83c906d00de716c6a5860aeb95e08575c6b6af7f9f07e8c3","name":"Yohanna Seifu","registered_at":"2026-06-11T15:05:41Z","symbol":"NIM0058064","token_address":"0x303c2681746dfa5f90976ef7d4e4e409985ce7a1","type":"artist","uuid":"2c3e7b17-acd2-4adb-b885-c544de39369f"}
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 0x0fae7197bf21aaec83c906d00de716c6a5860aeb95e08575c6b6af7f9f07e8c3. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2c3e7b17-acd2-4adb-b885-c544de39369f.json and https://artists.proofprofile.net/proofs/artist/2c3e7b17-acd2-4adb-b885-c544de39369f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x0fae7197bf21aaec83c906d00de716c6a5860aeb95e08575c6b6af7f9f07e8c3","name":"Yohanna Seifu","registered_at":"2026-06-11T15:05:41Z","symbol":"NIM0058064","token_address":"0x303c2681746dfa5f90976ef7d4e4e409985ce7a1","type":"artist","uuid":"2c3e7b17-acd2-4adb-b885-c544de39369f"}
album: NONE OF IT
  type: MusicAlbum
  date published: 2019-09-28
album: I Can't Hide
  type: MusicAlbum
  date published: 2020-05-25
album: I Can't Hide
  type: MusicAlbum
  date published: 2020-05-25
album: Superglue
  type: MusicAlbum
  date published: 2020-12-11
album: Superglue
  type: MusicAlbum
  date published: 2020-12-11
album: Misread
  type: MusicAlbum
  date published: 2022-06-24
album: Hakuna Matata
  type: MusicAlbum
  date published: 2023-11-24
album: All Night Long
  type: MusicAlbum
  date published: 2024-02-07
album: Storytime
  type: MusicAlbum
  date published: 2024-09-23
  track: Storytime
    type: MusicRecording
    duration: PT3M38S
    duration ms: 218750
    explicit: false
    by artist: Yohanna Seifu
    in album: Storytime
      type: MusicAlbum
      date published: 2024-09-23
    isrc code: SE6QE2477623
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T13:13:47+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x373e82fbdc84bb9c6caf7fcdeefd2a893730db1f9733d7f439d65d0d6262526a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956822
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956822
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6QE2477623
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T18:48:28Z
    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 0x373e82fbdc84bb9c6caf7fcdeefd2a893730db1f9733d7f439d65d0d6262526a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/SE6QE2477623.
      date published: 2026-07-05T18:48:28Z
    audio: Storytime
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 113.008
      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: 0.612
      additional property: Energy
        type: PropertyValue
        value: 0.789
      additional property: Speechiness
        type: PropertyValue
        value: 0.135
      additional property: Acousticness
        type: PropertyValue
        value: 0.34
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.073
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.269
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.986
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major