Sepp Ketch
type: MusicGroup
popularity: 32
followers: 67
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe147b16fc17e3b2807ea2a59d894ec856a60a09f1ff23ad3f5d88cbdfc36fb12
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9642a0f6-a178-46f6-9a12-b7c448d13226.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9642a0f6-a178-46f6-9a12-b7c448d13226.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9642a0f6-a178-46f6-9a12-b7c448d13226
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe147b16fc17e3b2807ea2a59d894ec856a60a09f1ff23ad3f5d88cbdfc36fb12","name":"Sepp Ketch","registered_at":"2026-06-12T05:02:54Z","symbol":"NIM0194803","token_address":"0xd21d237cc8305d56ca6e8c387ccb44c6f0fdc43d","type":"artist","uuid":"9642a0f6-a178-46f6-9a12-b7c448d13226"}
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 0xe147b16fc17e3b2807ea2a59d894ec856a60a09f1ff23ad3f5d88cbdfc36fb12. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9642a0f6-a178-46f6-9a12-b7c448d13226.json and https://artists.proofprofile.net/proofs/artist/9642a0f6-a178-46f6-9a12-b7c448d13226.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0xe147b16fc17e3b2807ea2a59d894ec856a60a09f1ff23ad3f5d88cbdfc36fb12","name":"Sepp Ketch","registered_at":"2026-06-12T05:02:54Z","symbol":"NIM0194803","token_address":"0xd21d237cc8305d56ca6e8c387ccb44c6f0fdc43d","type":"artist","uuid":"9642a0f6-a178-46f6-9a12-b7c448d13226"}
album: Crimson Calm
  type: MusicAlbum
  date published: 2024-09-13
album: In My Skin
  type: MusicAlbum
  date published: 2024-09-25
album: Sunset Blossoms
  type: MusicAlbum
  date published: 2025-10-21