Alessandra Marianelli
type: MusicGroup
genre: opera
description: Alessandra Marianelli (born 1986) is an Italian soprano. She made her professional debut in 2002 as Barbarina in Le nozze di Figaro and went on to sing leading roles in the opera houses of her native
popularity: 4
followers: 39
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdf90050c8d3c5f750e95b166727bd0529714d56f191c680e2e014a06dc4b1096
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5ed90ac9-5992-4d21-b3c6-f1ccc7c6a5a2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5ed90ac9-5992-4d21-b3c6-f1ccc7c6a5a2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5ed90ac9-5992-4d21-b3c6-f1ccc7c6a5a2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdf90050c8d3c5f750e95b166727bd0529714d56f191c680e2e014a06dc4b1096","name":"Alessandra Marianelli","registered_at":"2026-06-16T22:36:13Z","symbol":"NIM1197073","token_address":"0xb81a1372fc64c731251867bc11400e9f26dd4c4a","type":"artist","uuid":"5ed90ac9-5992-4d21-b3c6-f1ccc7c6a5a2"}
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 0xdf90050c8d3c5f750e95b166727bd0529714d56f191c680e2e014a06dc4b1096. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5ed90ac9-5992-4d21-b3c6-f1ccc7c6a5a2.json and https://artists.proofprofile.net/proofs/artist/5ed90ac9-5992-4d21-b3c6-f1ccc7c6a5a2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xdf90050c8d3c5f750e95b166727bd0529714d56f191c680e2e014a06dc4b1096","name":"Alessandra Marianelli","registered_at":"2026-06-16T22:36:13Z","symbol":"NIM1197073","token_address":"0xb81a1372fc64c731251867bc11400e9f26dd4c4a","type":"artist","uuid":"5ed90ac9-5992-4d21-b3c6-f1ccc7c6a5a2"}