Sumy
type: MusicGroup
genre: boogie
genre: post-disco
description: Sumy (, , ) is a city in northeastern Ukraine. It serves as the administrative center of Sumy Oblast. The city is situated on the banks of the Psel River and has a population of making it the 23rd-la
popularity: 5
followers: 659
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSProofURL
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
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 0xbded71ef0ebc17c6914ca2bbc613fae306d381d4f441da730d55fb498be8d861. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7823d4ef-60f4-4529-9607-84c43efb9a8b.json and https://artists.proofprofile.net/proofs/artist/7823d4ef-60f4-4529-9607-84c43efb9a8b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
album: Funkin' In Your Mind
  type: MusicAlbum
  date published: 1982-01-01
  track: Funkin' In Your Mind - Pt.1
    type: MusicRecording
    duration: PT6M19S
    duration ms: 379230
    explicit: false
    by artist: Sumy
    in album: Funkin' In Your Mind
      type: MusicAlbum
      date published: 1982-01-01
    genre: boogie
    genre: post-disco
    isrc code: NLUM71900485
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    additional property: OTSVerificationAPI
      type: PropertyValue
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T16:47:25Z
    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 0x5984eaec4889adc1f61ac4ba50cf6022625bed33433e3f40978343e8de5aa8d1. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/NLUM71900485.
      date published: 2026-07-18T16:47:25Z
    audio: Funkin' In Your Mind - Pt.1
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 115.586
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.822
      additional property: Energy
        type: PropertyValue
        value: 0.425
      additional property: Speechiness
        type: PropertyValue
        value: 0.052
      additional property: Acousticness
        type: PropertyValue
        value: 0.066
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.574
      additional property: Liveness
        type: PropertyValue
        value: 0.1
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.785
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.428
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Slow Soul Years
  type: MusicAlbum
  date published: 2014-05-31
album: Tryin To Survive
  type: MusicAlbum
  date published: 2015-01-19
album: Tryin To Survive
  type: MusicAlbum
  date published: 2015-01-19
album: Tryin To Survive
  type: MusicAlbum
  date published: 2015-01-19
album: Acapulco
  type: MusicAlbum
  date published: 2020-12-04
album: Appletv
  type: MusicAlbum
  date published: 2020-12-04