Sigi Mittermayr
type: MusicGroup
popularity: 4
followers: 53
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaf05f47674fe375bf7619ed99c18aa5de465719a57c8a750a846da6fdff48d11
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/8c70bf95-bc83-476d-acf8-adf2fcf8fc39.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8c70bf95-bc83-476d-acf8-adf2fcf8fc39.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8c70bf95-bc83-476d-acf8-adf2fcf8fc39
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xaf05f47674fe375bf7619ed99c18aa5de465719a57c8a750a846da6fdff48d11","name":"Sigi Mittermayr","registered_at":"2026-06-17T14:37:14Z","symbol":"NIM1426227","token_address":"0x5ce9fc35b27ffa7abc238928c1ec913225f6810a","type":"artist","uuid":"8c70bf95-bc83-476d-acf8-adf2fcf8fc39"}
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 0xaf05f47674fe375bf7619ed99c18aa5de465719a57c8a750a846da6fdff48d11. 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/8c70bf95-bc83-476d-acf8-adf2fcf8fc39.json and https://artists.proofprofile.net/proofs/artist/8c70bf95-bc83-476d-acf8-adf2fcf8fc39.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xaf05f47674fe375bf7619ed99c18aa5de465719a57c8a750a846da6fdff48d11","name":"Sigi Mittermayr","registered_at":"2026-06-17T14:37:14Z","symbol":"NIM1426227","token_address":"0x5ce9fc35b27ffa7abc238928c1ec913225f6810a","type":"artist","uuid":"8c70bf95-bc83-476d-acf8-adf2fcf8fc39"}
album: Papierflieger
  type: MusicAlbum
  date published: 2010
album: Ned Vü
  type: MusicAlbum
  date published: 2013-03-08
album: Connected
  type: MusicAlbum
  date published: 2020-01-31
album: Far Away
  type: MusicAlbum
  date published: 2020-04-17