Bulgarian Television and Radio Folklore Ensemble
type: MusicGroup
popularity: 6
followers: 493
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1e13647789490b39b7e7b8e7948be2d600c38fe4f4fb2022b272f268967ffeb1
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/866cea21-a685-4a77-a62b-63e4f8f2235a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/866cea21-a685-4a77-a62b-63e4f8f2235a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/866cea21-a685-4a77-a62b-63e4f8f2235a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1e13647789490b39b7e7b8e7948be2d600c38fe4f4fb2022b272f268967ffeb1","name":"Bulgarian Television and Radio Folklore Ensemble","registered_at":"2026-06-17T12:34:09Z","symbol":"NIM1396939","token_address":"0x663bafcb214cbaa759786d81382573a70a538aa2","type":"artist","uuid":"866cea21-a685-4a77-a62b-63e4f8f2235a"}
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 0x1e13647789490b39b7e7b8e7948be2d600c38fe4f4fb2022b272f268967ffeb1. 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/866cea21-a685-4a77-a62b-63e4f8f2235a.json and https://artists.proofprofile.net/proofs/artist/866cea21-a685-4a77-a62b-63e4f8f2235a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x1e13647789490b39b7e7b8e7948be2d600c38fe4f4fb2022b272f268967ffeb1","name":"Bulgarian Television and Radio Folklore Ensemble","registered_at":"2026-06-17T12:34:09Z","symbol":"NIM1396939","token_address":"0x663bafcb214cbaa759786d81382573a70a538aa2","type":"artist","uuid":"866cea21-a685-4a77-a62b-63e4f8f2235a"}
album: 25 години Ансамбъл за народни песни при Комитета за телевизия и радио
  type: MusicAlbum
  date published: 1977-03-01
album: Krassimir Kyurkchiiski: Bulgarian Folklore Masterpieces
  type: MusicAlbum
  date published: 2012-01-18
  track: Kalimankou denkou
    type: MusicRecording
    duration: PT4M58S
    duration ms: 298866
    explicit: false
    by artist: Bulgarian Television and Radio Folklore Ensemble
    in album: Krassimir Kyurkchiiski: Bulgarian Folklore Masterpieces
      type: MusicAlbum
      date published: 2012-01-18
    isrc code: BGA672211901
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T15:59:32+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb295d28b87a2fb14fbd33fb4a2b768a6e5fa91c8730d543c6f96139c0cf823db
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958756
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958756
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BGA672211901
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T16:12:29Z
    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 0xb295d28b87a2fb14fbd33fb4a2b768a6e5fa91c8730d543c6f96139c0cf823db. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T16:12:29Z), 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/BGA672211901.
      date published: 2026-07-19T16:12:29Z
    audio: Kalimankou denkou
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 91.348
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.12
      additional property: Energy
        type: PropertyValue
        value: 0.072
      additional property: Speechiness
        type: PropertyValue
        value: 0.038
      additional property: Acousticness
        type: PropertyValue
        value: 0.941
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.002
      additional property: Liveness
        type: PropertyValue
        value: 0.323
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.034
      additional property: Loudness (dB)
        type: PropertyValue
        value: -19.838
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor