SAYMER
type: MusicGroup
popularity: 2
followers: 782
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2abd63df8513b8961542e193b0196c7554bcd8129e1dd29efea4defef9a3ae98
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954043
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954043
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3fd4fbb0-4539-4fa7-ad26-4b1e2c4de07f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3fd4fbb0-4539-4fa7-ad26-4b1e2c4de07f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3fd4fbb0-4539-4fa7-ad26-4b1e2c4de07f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T04:15:20Z
additional property: OTSCanonicalRecord
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 0x2abd63df8513b8961542e193b0196c7554bcd8129e1dd29efea4defef9a3ae98. Chain 2 (Bitcoin): anchored in block 954043 (2026-06-17T04:15:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3fd4fbb0-4539-4fa7-ad26-4b1e2c4de07f.json and https://artists.proofprofile.net/proofs/artist/3fd4fbb0-4539-4fa7-ad26-4b1e2c4de07f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T04:15:20Z
album: Запомни
  type: MusicAlbum
  date published: 2019-09-23
album: Надежда поколений
  type: MusicAlbum
  date published: 2020-03-15
album: Больше не верю!
  type: MusicAlbum
  date published: 2020-05-22
album: Ты все потерял!
  type: MusicAlbum
  date published: 2020-10-03
album: Ты врала мне всегда
  type: MusicAlbum
  date published: 2021-01-15
album: Девчонка
  type: MusicAlbum
  date published: 2021-11-06
album: Чёрно-Белое
  type: MusicAlbum
  date published: 2021-12-08
album: Кажи
  type: MusicAlbum
  date published: 2023-04-07
album: Внутрішній Світ
  type: MusicAlbum
  date published: 2023-05-12
album: Під дощем
  type: MusicAlbum
  date published: 2023-07-07
album: Не повіриш
  type: MusicAlbum
  date published: 2023-09-08
album: Потяг
  type: MusicAlbum
  date published: 2023-12-22
album: Біль
  type: MusicAlbum
  date published: 2024-02-23
album: Весна
  type: MusicAlbum
  date published: 2024-05-31
album: Don't Fly Away
  type: MusicAlbum
  date published: 2024-08-02
album: Вітром
  type: MusicAlbum
  date published: 2025-06-27
  track: Вітром
    type: MusicRecording
    duration: PT4M19S
    duration ms: 259411
    explicit: false
    by artist: SAYMER
    in album: Вітром
      type: MusicAlbum
      date published: 2025-06-27
    isrc code: QMBZ92564091
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T03:00:40+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xbdd52de1572b13736e2134cf96265fe37f614a403a2244ee6e832ac7222841ab
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958690
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958690
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92564091
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T07:14:39Z
    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 0xbdd52de1572b13736e2134cf96265fe37f614a403a2244ee6e832ac7222841ab. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QMBZ92564091.
      date published: 2026-07-19T07:14:39Z
    audio: Вітром
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 100.135
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.358
      additional property: Energy
        type: PropertyValue
        value: 0.757
      additional property: Speechiness
        type: PropertyValue
        value: 0.036
      additional property: Acousticness
        type: PropertyValue
        value: 0.002
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.098
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.146
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.298
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Minor