Cosmo & Kramer
type: MusicGroup
genre: afro house
genre: indie dance
popularity: 2
followers: 517
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4a9d53d9c637eadeff2141cf6e19afaefcf8bf302f3634902cc922d73c252872
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a56f0a0a-653c-4ecb-9ba3-7f7c51c9976e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a56f0a0a-653c-4ecb-9ba3-7f7c51c9976e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a56f0a0a-653c-4ecb-9ba3-7f7c51c9976e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4a9d53d9c637eadeff2141cf6e19afaefcf8bf302f3634902cc922d73c252872","name":"Cosmo & Kramer","registered_at":"2026-06-20T07:19:04Z","symbol":"NIM1551840","token_address":"0xa6b3fa03b6e6c077b99a4accd15d7754e6312247","type":"artist","uuid":"a56f0a0a-653c-4ecb-9ba3-7f7c51c9976e"}
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 0x4a9d53d9c637eadeff2141cf6e19afaefcf8bf302f3634902cc922d73c252872. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a56f0a0a-653c-4ecb-9ba3-7f7c51c9976e.json and https://artists.proofprofile.net/proofs/artist/a56f0a0a-653c-4ecb-9ba3-7f7c51c9976e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0x4a9d53d9c637eadeff2141cf6e19afaefcf8bf302f3634902cc922d73c252872","name":"Cosmo & Kramer","registered_at":"2026-06-20T07:19:04Z","symbol":"NIM1551840","token_address":"0xa6b3fa03b6e6c077b99a4accd15d7754e6312247","type":"artist","uuid":"a56f0a0a-653c-4ecb-9ba3-7f7c51c9976e"}
album: Cake
  type: MusicAlbum
  date published: 2017-01-27
album: Cake
  type: MusicAlbum
  date published: 2017-01-27
album: Hanoi / Awa
  type: MusicAlbum
  date published: 2018-05-18
album: Hanoi / Awa
  type: MusicAlbum
  date published: 2018-05-18
album: Brooklyn
  type: MusicAlbum
  date published: 2019-05-03
album: Bingo Fun
  type: MusicAlbum
  date published: 2020-05-29
album: Bingo Fun
  type: MusicAlbum
  date published: 2020-05-29
album: Cruise Control
  type: MusicAlbum
  date published: 2021-01-10