Waltraud & Mariechen
type: MusicGroup
genre: comedy
popularity: 4
followers: 263
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf4c6793494879dc4be1b36496d6196af115e25cba4a13d41916e04982c4ed554
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954013
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954013
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/34e73a15-ca9d-4115-84ba-abb2240f3a4b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/34e73a15-ca9d-4115-84ba-abb2240f3a4b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/34e73a15-ca9d-4115-84ba-abb2240f3a4b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T22:27:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf4c6793494879dc4be1b36496d6196af115e25cba4a13d41916e04982c4ed554","name":"Waltraud & Mariechen","registered_at":"2026-06-16T08:02:56Z","symbol":"NIM0988720","token_address":"0xe1c4e4e73ae1cd45a3c8071dece1245774033ce5","type":"artist","uuid":"34e73a15-ca9d-4115-84ba-abb2240f3a4b"}
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 0xf4c6793494879dc4be1b36496d6196af115e25cba4a13d41916e04982c4ed554. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/34e73a15-ca9d-4115-84ba-abb2240f3a4b.json and https://artists.proofprofile.net/proofs/artist/34e73a15-ca9d-4115-84ba-abb2240f3a4b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:46:20Z
  text: {"copyright_id":"0xf4c6793494879dc4be1b36496d6196af115e25cba4a13d41916e04982c4ed554","name":"Waltraud & Mariechen","registered_at":"2026-06-16T08:02:56Z","symbol":"NIM0988720","token_address":"0xe1c4e4e73ae1cd45a3c8071dece1245774033ce5","type":"artist","uuid":"34e73a15-ca9d-4115-84ba-abb2240f3a4b"}
album: Blouss dasd wos sagsd
  type: MusicAlbum
  date published: 2003-05-05