A. Malando And His Tango Orchestra
type: MusicGroup
genre: iskelmä
genre: tango
popularity: 2
followers: 88
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xff45330145e1e29883d8f95ec8de043beb9234d1727b65d123ce00b38b2545b8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f9852190-a35c-4606-999b-ee8c435bc487.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f9852190-a35c-4606-999b-ee8c435bc487.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f9852190-a35c-4606-999b-ee8c435bc487
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xff45330145e1e29883d8f95ec8de043beb9234d1727b65d123ce00b38b2545b8","name":"A. Malando And His Tango Orchestra","registered_at":"2026-06-21T16:29:33Z","symbol":"NIM1974567","token_address":"0x6c7b46a6191298f70759a6916eed5ac86e5097c7","type":"artist","uuid":"f9852190-a35c-4606-999b-ee8c435bc487"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff45330145e1e29883d8f95ec8de043beb9234d1727b65d123ce00b38b2545b8. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f9852190-a35c-4606-999b-ee8c435bc487.json and https://artists.proofprofile.net/proofs/artist/f9852190-a35c-4606-999b-ee8c435bc487.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:08:38Z
  text: {"copyright_id":"0xff45330145e1e29883d8f95ec8de043beb9234d1727b65d123ce00b38b2545b8","name":"A. Malando And His Tango Orchestra","registered_at":"2026-06-21T16:29:33Z","symbol":"NIM1974567","token_address":"0x6c7b46a6191298f70759a6916eed5ac86e5097c7","type":"artist","uuid":"f9852190-a35c-4606-999b-ee8c435bc487"}
album: Malando soittaa Toivo Kärjen tangola
  type: MusicAlbum
  date published: 1973
album: Suosikkitangoja
  type: MusicAlbum
  date published: 1989