Tsena Koev
type: MusicGroup
genre: gothic metal
genre: symphonic metal
popularity: 3
followers: 457
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x18850c22a33ca3720c9536f481c48614ca3f455fe0741ec1bec642da68e1fe72
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954742
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954742
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fd786ba4-9647-4a61-8ddc-16087549620b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fd786ba4-9647-4a61-8ddc-16087549620b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fd786ba4-9647-4a61-8ddc-16087549620b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T20:46:40Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x18850c22a33ca3720c9536f481c48614ca3f455fe0741ec1bec642da68e1fe72","name":"Tsena Koev","registered_at":"2026-06-21T17:59:35Z","symbol":"NIM1994959","token_address":"0x34ed05dde568e715a5ab1b3199c5a64f86394e4c","type":"artist","uuid":"fd786ba4-9647-4a61-8ddc-16087549620b"}
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 0x18850c22a33ca3720c9536f481c48614ca3f455fe0741ec1bec642da68e1fe72. Chain 2 (Bitcoin): anchored in block 954742 (2026-06-21T20:46:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fd786ba4-9647-4a61-8ddc-16087549620b.json and https://artists.proofprofile.net/proofs/artist/fd786ba4-9647-4a61-8ddc-16087549620b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T20:46:40Z
  text: {"copyright_id":"0x18850c22a33ca3720c9536f481c48614ca3f455fe0741ec1bec642da68e1fe72","name":"Tsena Koev","registered_at":"2026-06-21T17:59:35Z","symbol":"NIM1994959","token_address":"0x34ed05dde568e715a5ab1b3199c5a64f86394e4c","type":"artist","uuid":"fd786ba4-9647-4a61-8ddc-16087549620b"}
album: Our Decades In The Sun (Acoustic)
  type: MusicAlbum
  date published: 2015
album: The Traveller
  type: MusicAlbum
  date published: 2022-02-26
album: Something Inside
  type: MusicAlbum
  date published: 2022-02-26
album: Emotions in a Jar
  type: MusicAlbum
  date published: 2022-08-26
album: Miserere
  type: MusicAlbum
  date published: 2023-05-18
album: Erase Me
  type: MusicAlbum
  date published: 2024-12-25
  track: Erase Me
    type: MusicRecording
    duration: PT4M36S
    duration ms: 276160
    explicit: false
    by artist: Tsena Koev
    in album: Erase Me
      type: MusicAlbum
      date published: 2024-12-25
    genre: gothic metal
    genre: symphonic metal
    isrc code: BGA472442070
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T18:46:42+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x98c509d8a5f9981ca81df61dac233423bd473ec59d1f9d9a334588a32abde99a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958924
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958924
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BGA472442070
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T18:54:07Z
    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 0x98c509d8a5f9981ca81df61dac233423bd473ec59d1f9d9a334588a32abde99a. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/BGA472442070.
      date published: 2026-07-20T18:54:07Z
    audio: Erase Me
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 138.018
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.455
      additional property: Energy
        type: PropertyValue
        value: 0.846
      additional property: Speechiness
        type: PropertyValue
        value: 0.053
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.207
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.359
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.832
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor