kammer.
type: MusicGroup
popularity: 9
followers: 281
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x76f1d9e93e402d94d68f0e512336d989c98253317009045f4a2bc1d0b8627f01
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954615
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954615
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c4eb5da2-1659-4f0c-97f3-a698e1dc7dee.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c4eb5da2-1659-4f0c-97f3-a698e1dc7dee.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c4eb5da2-1659-4f0c-97f3-a698e1dc7dee
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T22:44:50Z
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 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 0x76f1d9e93e402d94d68f0e512336d989c98253317009045f4a2bc1d0b8627f01. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c4eb5da2-1659-4f0c-97f3-a698e1dc7dee.json and https://artists.proofprofile.net/proofs/artist/c4eb5da2-1659-4f0c-97f3-a698e1dc7dee.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-20T22:44:50Z
album: Disco Disco (12" Mix)
  type: MusicAlbum
  date published: 2021-12-16
album: Soulmate
  type: MusicAlbum
  date published: 2021-12-30
album: Us
  type: MusicAlbum
  date published: 2022-01-27
album: Here We Go (Dub Edit)
  type: MusicAlbum
  date published: 2022-02-21
album: Earned It
  type: MusicAlbum
  date published: 2022-03-24
album: Easy To Love
  type: MusicAlbum
  date published: 2022-04-25
album: Every Single Time (Edit)
  type: MusicAlbum
  date published: 2022-05-19
album: FEEL
  type: MusicAlbum
  date published: 2022-06-23
album: VaDanza
  type: MusicAlbum
  date published: 2022-07-28
album: Demons
  type: MusicAlbum
  date published: 2022-10-06
album: L4u. (Original Mix)
  type: MusicAlbum
  date published: 2024-03-21