CassCity
type: MusicGroup
popularity: 5
followers: 254
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa386e69e7d1f6058e3ec4ec199d4bf7165f9b4222fae27f350e121e70dac2c44
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/8b342444-6f0f-4da7-b960-9de19a10a20c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8b342444-6f0f-4da7-b960-9de19a10a20c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8b342444-6f0f-4da7-b960-9de19a10a20c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
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 0xa386e69e7d1f6058e3ec4ec199d4bf7165f9b4222fae27f350e121e70dac2c44. 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/8b342444-6f0f-4da7-b960-9de19a10a20c.json and https://artists.proofprofile.net/proofs/artist/8b342444-6f0f-4da7-b960-9de19a10a20c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
album: Mary
  type: MusicAlbum
  date published: 2019-08-05
album: Murderer
  type: MusicAlbum
  date published: 2019-08-05
album: London Bridge
  type: MusicAlbum
  date published: 2019-08-05
album: Go Away
  type: MusicAlbum
  date published: 2019-09-15
album: Wounded
  type: MusicAlbum
  date published: 2019-12-15
album: Misery
  type: MusicAlbum
  date published: 2020-05-15
album: Slay, Mommy
  type: MusicAlbum
  date published: 2020-06-11
album: Secrets
  type: MusicAlbum
  date published: 2020-07-03
album: Come Back
  type: MusicAlbum
  date published: 2020-07-23
album: Sunday
  type: MusicAlbum
  date published: 2020-08-07
album: Purple Clouds
  type: MusicAlbum
  date published: 2021-03-12
  track: Glitter
    type: MusicRecording
    duration: PT3M41S
    duration ms: 221150
    explicit: false
    by artist: CassCity
    in album: Purple Clouds
      type: MusicAlbum
      date published: 2021-03-12
    isrc code: QZFZ62133501
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T20:16:28+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x25ddb9f3e789f1279eef550e7d969c7602d25c9151b868fd7aeab18a51b06857
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956551
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956551
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ62133501
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T21:18:05Z
    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 0x25ddb9f3e789f1279eef550e7d969c7602d25c9151b868fd7aeab18a51b06857. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZFZ62133501.
      date published: 2026-07-03T21:18:05Z
    audio: Glitter
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 103.908
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.26
      additional property: Energy
        type: PropertyValue
        value: 0.233
      additional property: Speechiness
        type: PropertyValue
        value: 0.044
      additional property: Acousticness
        type: PropertyValue
        value: 0.76
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.693
      additional property: Liveness
        type: PropertyValue
        value: 0.159
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.086
      additional property: Loudness (dB)
        type: PropertyValue
        value: -20.385
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Ice Cream
  type: MusicAlbum
  date published: 2021-07-30
album: Hurricane
  type: MusicAlbum
  date published: 2021-08-21
album: Rose in the Wind
  type: MusicAlbum
  date published: 2021-09-10
album: Save Me
  type: MusicAlbum
  date published: 2021-10-06
album: The Virus
  type: MusicAlbum
  date published: 2021-11-26
album: Haterade
  type: MusicAlbum
  date published: 2022-08-06
album: Beautiful Dark
  type: MusicAlbum
  date published: 2022-12-21
album: Honey Sticks
  type: MusicAlbum
  date published: 2023-05-19
album: I Just Wanna Dance
  type: MusicAlbum
  date published: 2023-06-23
album: For A Woman
  type: MusicAlbum
  date published: 2023-08-11
album: Mindfield
  type: MusicAlbum
  date published: 2023-10-13
album: The Lovestruck EP
  type: MusicAlbum
  date published: 2024-02-14
album: Days Go By
  type: MusicAlbum
  date published: 2024-03-08
album: Holy
  type: MusicAlbum
  date published: 2024-05-17
album: Death Do Us Part
  type: MusicAlbum
  date published: 2024-06-28
album: Burning Man
  type: MusicAlbum
  date published: 2025-07-18