Wasyl Agapkin
type: MusicGroup
popularity: 6
followers: 13
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xebb1e8c2a12044fbe6ba35da7ed838b353e6a301dabd8f4555fb3085f0b152c9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953975
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953975
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2b1c37ad-10ba-4d03-abf5-bd4124cdf75c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2b1c37ad-10ba-4d03-abf5-bd4124cdf75c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2b1c37ad-10ba-4d03-abf5-bd4124cdf75c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:53:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xebb1e8c2a12044fbe6ba35da7ed838b353e6a301dabd8f4555fb3085f0b152c9","name":"Wasyl Agapkin","registered_at":"2026-06-16T04:39:04Z","symbol":"NIM0940023","token_address":"0xd633d95095a5de693dbcea2a084d59bd09160c5e","type":"artist","uuid":"2b1c37ad-10ba-4d03-abf5-bd4124cdf75c"}
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 0xebb1e8c2a12044fbe6ba35da7ed838b353e6a301dabd8f4555fb3085f0b152c9. Chain 2 (Bitcoin): anchored in block 953975 (2026-06-16T16:53:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2b1c37ad-10ba-4d03-abf5-bd4124cdf75c.json and https://artists.proofprofile.net/proofs/artist/2b1c37ad-10ba-4d03-abf5-bd4124cdf75c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T16:53:41Z
  text: {"copyright_id":"0xebb1e8c2a12044fbe6ba35da7ed838b353e6a301dabd8f4555fb3085f0b152c9","name":"Wasyl Agapkin","registered_at":"2026-06-16T04:39:04Z","symbol":"NIM0940023","token_address":"0xd633d95095a5de693dbcea2a084d59bd09160c5e","type":"artist","uuid":"2b1c37ad-10ba-4d03-abf5-bd4124cdf75c"}
track: Rozszumiały się wierzby płaczące
  type: MusicRecording
  duration: PT3M15S
  duration ms: 195866
  explicit: false
  by artist: Wasyl Agapkin
  by artist: Chor Polskiego Radia
  by artist: Orkiestra Polskiego Radia
  by artist: Jerzy Kołaczkowski
  in album: W Lubianym Repertuarze
    type: MusicAlbum
    date published: 2006-12-07
  isrc code: PLA246308979
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-27T19:28:07+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe6cddf13690e95878a337150d7729781221f65ccc5abf6becdd50232fd8bfdb9
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLA246308979
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  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 0xe6cddf13690e95878a337150d7729781221f65ccc5abf6becdd50232fd8bfdb9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/PLA246308979.
    date published: 2026-07-08T03:20:19Z
  audio: Rozszumiały się wierzby płaczące
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 121.945
    additional property: Musical Key
      type: PropertyValue
      value: 3
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.587
    additional property: Energy
      type: PropertyValue
      value: 0.349
    additional property: Speechiness
      type: PropertyValue
      value: 0.031
    additional property: Acousticness
      type: PropertyValue
      value: 0.977
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.001
    additional property: Liveness
      type: PropertyValue
      value: 0.104
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.325
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.868
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Major