De Zammgwürfelt'n
type: MusicGroup
genre: polka
popularity: 4
followers: 177
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xea2c25cfc8d8056e9de1098849384cb1edc366c9e8b5e53a54bf8579c5e9dfcc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954553
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954553
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/acb78de2-b298-4629-858a-11656251ac89.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/acb78de2-b298-4629-858a-11656251ac89.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/acb78de2-b298-4629-858a-11656251ac89
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T11:51:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xea2c25cfc8d8056e9de1098849384cb1edc366c9e8b5e53a54bf8579c5e9dfcc","name":"De Zammgwürfelt'n","registered_at":"2026-06-20T09:50:48Z","symbol":"NIM1587829","token_address":"0x6beb36737bd9dda3fd89808a4b95d07cfeed05c9","type":"artist","uuid":"acb78de2-b298-4629-858a-11656251ac89"}
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 0xea2c25cfc8d8056e9de1098849384cb1edc366c9e8b5e53a54bf8579c5e9dfcc. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/acb78de2-b298-4629-858a-11656251ac89.json and https://artists.proofprofile.net/proofs/artist/acb78de2-b298-4629-858a-11656251ac89.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T11:51:30Z
  text: {"copyright_id":"0xea2c25cfc8d8056e9de1098849384cb1edc366c9e8b5e53a54bf8579c5e9dfcc","name":"De Zammgwürfelt'n","registered_at":"2026-06-20T09:50:48Z","symbol":"NIM1587829","token_address":"0x6beb36737bd9dda3fd89808a4b95d07cfeed05c9","type":"artist","uuid":"acb78de2-b298-4629-858a-11656251ac89"}
album: Quer durch’s Werdenfelser Land - NR. 1
  type: MusicAlbum
  date published: 2022-01-07