Keiser Twins
type: MusicGroup
genre: album rock
genre: bluegrass
popularity: 6
followers: 171
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x57340bb75cace94033152cf12e4ee88887e9902218d137e981deb04df9eca457
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953954
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953954
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/245f2ad3-6ac6-416c-860d-05659062423d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/245f2ad3-6ac6-416c-860d-05659062423d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/245f2ad3-6ac6-416c-860d-05659062423d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T14:18:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x57340bb75cace94033152cf12e4ee88887e9902218d137e981deb04df9eca457","name":"Keiser Twins","registered_at":"2026-06-16T02:31:16Z","symbol":"NIM0909504","token_address":"0xa33afcc4e5ef27ced3d1df5fc20f93b5026fc49f","type":"artist","uuid":"245f2ad3-6ac6-416c-860d-05659062423d"}
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 0x57340bb75cace94033152cf12e4ee88887e9902218d137e981deb04df9eca457. Chain 2 (Bitcoin): anchored in block 953954 (2026-06-16T14:18:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/245f2ad3-6ac6-416c-860d-05659062423d.json and https://artists.proofprofile.net/proofs/artist/245f2ad3-6ac6-416c-860d-05659062423d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T14:18:37Z
  text: {"copyright_id":"0x57340bb75cace94033152cf12e4ee88887e9902218d137e981deb04df9eca457","name":"Keiser Twins","registered_at":"2026-06-16T02:31:16Z","symbol":"NIM0909504","token_address":"0xa33afcc4e5ef27ced3d1df5fc20f93b5026fc49f","type":"artist","uuid":"245f2ad3-6ac6-416c-860d-05659062423d"}
album: Keiser Twins (Remastered)
  type: MusicAlbum
  date published: 2017-05-05
album: Emotional Strangers
  type: MusicAlbum
  date published: 2017-05-05
album: Le Trip
  type: MusicAlbum
  date published: 2017-06-02
album: Guestlist
  type: MusicAlbum
  date published: 2019-04-01
album: Eddie the Cat
  type: MusicAlbum
  date published: 2020-06-19
track: Egg Salad - Interlude - Live 2018
  type: MusicRecording
  duration: PT3M14S
  duration ms: 194066
  explicit: false
  by artist: Gölä
  by artist: Keiser Twins
  in album: 20 Jahre Bühnenjubiläum Hallenstadion 2018
    type: MusicAlbum
    date published: 2019-02-01
  popularity: 2
  genre: mundart
  isrc code: CH2881900260
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T00:48:31+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x19228aea64bdd452cb8bb37b73e4530d84bec110008d11381d9b018bfc2fd3d5
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960334
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960334
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH2881900260
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T02:19:15Z
  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 0x19228aea64bdd452cb8bb37b73e4530d84bec110008d11381d9b018bfc2fd3d5. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/CH2881900260.
    date published: 2026-07-31T02:19:15Z
  audio: Egg Salad - Interlude - Live 2018
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 137.851
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.408
    additional property: Energy
      type: PropertyValue
      value: 0.882
    additional property: Speechiness
      type: PropertyValue
      value: 0.052
    additional property: Acousticness
      type: PropertyValue
      value: 0
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.018
    additional property: Liveness
      type: PropertyValue
      value: 0.93
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.154
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.852
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Minor