Massimo Siviero
type: MusicGroup
popularity: 13
followers: 93
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0ba5adedb004e1e60f342ddc363449db150d724a6dc1faabe248ba818c39218c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953596
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953596
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/08c996d6-9d70-4008-8639-fc6672338dc9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/08c996d6-9d70-4008-8639-fc6672338dc9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/08c996d6-9d70-4008-8639-fc6672338dc9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T06:21:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0ba5adedb004e1e60f342ddc363449db150d724a6dc1faabe248ba818c39218c","name":"Massimo Siviero","registered_at":"2026-06-14T05:21:04Z","symbol":"NIM0351105","token_address":"0x19927e102500d8ea2c180e088494a68715bd7789","type":"artist","uuid":"08c996d6-9d70-4008-8639-fc6672338dc9"}
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 0x0ba5adedb004e1e60f342ddc363449db150d724a6dc1faabe248ba818c39218c. Chain 2 (Bitcoin): anchored in block 953596 (2026-06-14T06:21:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/08c996d6-9d70-4008-8639-fc6672338dc9.json and https://artists.proofprofile.net/proofs/artist/08c996d6-9d70-4008-8639-fc6672338dc9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T06:21:39Z
  text: {"copyright_id":"0x0ba5adedb004e1e60f342ddc363449db150d724a6dc1faabe248ba818c39218c","name":"Massimo Siviero","registered_at":"2026-06-14T05:21:04Z","symbol":"NIM0351105","token_address":"0x19927e102500d8ea2c180e088494a68715bd7789","type":"artist","uuid":"08c996d6-9d70-4008-8639-fc6672338dc9"}
album: El Cubanero
  type: MusicAlbum
  date published: 2014-02-06
album: Pulcinella (Tarantella)
  type: MusicAlbum
  date published: 2014-02-06
album: Tango Dance (feat. La banda del cuore)
  type: MusicAlbum
  date published: 2015-04-15
album: Martinica (Disco Samba for Accordion)
  type: MusicAlbum
  date published: 2017-10-09
album: Macumbia
  type: MusicAlbum
  date published: 2018-02-01
album: Giramondo (Valzer per fisarmonica)
  type: MusicAlbum
  date published: 2024-05-15