Gemengd Koor Con Amore
type: MusicGroup
popularity: 6
followers: 107
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4579728e6fbe04a2befb22de0454672d6bd875156aa8370cccadd7b380723c71
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954131
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954131
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7dc26c4b-e3f5-45aa-8dd9-723addd25aae.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7dc26c4b-e3f5-45aa-8dd9-723addd25aae.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7dc26c4b-e3f5-45aa-8dd9-723addd25aae
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T19:19:19Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4579728e6fbe04a2befb22de0454672d6bd875156aa8370cccadd7b380723c71","name":"Gemengd Koor Con Amore","registered_at":"2026-06-17T09:29:32Z","symbol":"NIM1352920","token_address":"0x290009f7d0ad4a008a97a6cfdd279cd4f31e603b","type":"artist","uuid":"7dc26c4b-e3f5-45aa-8dd9-723addd25aae"}
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 0x4579728e6fbe04a2befb22de0454672d6bd875156aa8370cccadd7b380723c71. Chain 2 (Bitcoin): anchored in block 954134 (2026-06-17T19:41:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7dc26c4b-e3f5-45aa-8dd9-723addd25aae.json and https://artists.proofprofile.net/proofs/artist/7dc26c4b-e3f5-45aa-8dd9-723addd25aae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T19:41:05Z
  text: {"copyright_id":"0x4579728e6fbe04a2befb22de0454672d6bd875156aa8370cccadd7b380723c71","name":"Gemengd Koor Con Amore","registered_at":"2026-06-17T09:29:32Z","symbol":"NIM1352920","token_address":"0x290009f7d0ad4a008a97a6cfdd279cd4f31e603b","type":"artist","uuid":"7dc26c4b-e3f5-45aa-8dd9-723addd25aae"}