De Optimisten
type: MusicGroup
popularity: 2
followers: 10
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x30492a9c0a0bc34716081fdcaa24087f5bd2960ca49301acaacc6e46b333dabe
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953907
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953907
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/16993ec6-df97-4110-980f-c0297aaabe7a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/16993ec6-df97-4110-980f-c0297aaabe7a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/16993ec6-df97-4110-980f-c0297aaabe7a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:39:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x30492a9c0a0bc34716081fdcaa24087f5bd2960ca49301acaacc6e46b333dabe","name":"De Optimisten","registered_at":"2026-06-15T21:40:08Z","symbol":"NIM0839991","token_address":"0x4be8620c3f7476c1275a10aed850b0e1d4878389","type":"artist","uuid":"16993ec6-df97-4110-980f-c0297aaabe7a"}
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 0x30492a9c0a0bc34716081fdcaa24087f5bd2960ca49301acaacc6e46b333dabe. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/16993ec6-df97-4110-980f-c0297aaabe7a.json and https://artists.proofprofile.net/proofs/artist/16993ec6-df97-4110-980f-c0297aaabe7a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0x30492a9c0a0bc34716081fdcaa24087f5bd2960ca49301acaacc6e46b333dabe","name":"De Optimisten","registered_at":"2026-06-15T21:40:08Z","symbol":"NIM0839991","token_address":"0x4be8620c3f7476c1275a10aed850b0e1d4878389","type":"artist","uuid":"16993ec6-df97-4110-980f-c0297aaabe7a"}
album: 25 Jaar
  type: MusicAlbum
  date published: 1998-07-01
album: Hier sind wir wieder
  type: MusicAlbum
  date published: 2001-06-02