Massimo Costa
type: MusicGroup
genre: electropop
popularity: 9
followers: 954
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x80040767b282f03bf479aa03faa07f80ef729123d72b10483e5a7c9015615913
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954631
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954631
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ce758e6a-b478-445a-a699-d9ff5275bafe.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ce758e6a-b478-445a-a699-d9ff5275bafe.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ce758e6a-b478-445a-a699-d9ff5275bafe
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T02:46:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x80040767b282f03bf479aa03faa07f80ef729123d72b10483e5a7c9015615913","name":"Massimo Costa","registered_at":"2026-06-21T00:22:14Z","symbol":"NIM1758134","token_address":"0x13e9b45b6e1e3e9fd0c03a6249983fbf3059d3c3","type":"artist","uuid":"ce758e6a-b478-445a-a699-d9ff5275bafe"}
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 0x80040767b282f03bf479aa03faa07f80ef729123d72b10483e5a7c9015615913. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ce758e6a-b478-445a-a699-d9ff5275bafe.json and https://artists.proofprofile.net/proofs/artist/ce758e6a-b478-445a-a699-d9ff5275bafe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T02:46:24Z
  text: {"copyright_id":"0x80040767b282f03bf479aa03faa07f80ef729123d72b10483e5a7c9015615913","name":"Massimo Costa","registered_at":"2026-06-21T00:22:14Z","symbol":"NIM1758134","token_address":"0x13e9b45b6e1e3e9fd0c03a6249983fbf3059d3c3","type":"artist","uuid":"ce758e6a-b478-445a-a699-d9ff5275bafe"}
album: Hipgnosis
  type: MusicAlbum
  date published: 2012-03-23
album: Back to the Past
  type: MusicAlbum
  date published: 2012-03-30
album: Peaceful
  type: MusicAlbum
  date published: 2017-05-19
album: Shine in the Dark: Contemporary Electro Pop 2
  type: MusicAlbum
  date published: 2018-05-16
album: Deeper Thoughts: Contemporary Electro Pop 3
  type: MusicAlbum
  date published: 2018-05-17
album: High-Tech Visions: Urban Electro Soundscapes
  type: MusicAlbum
  date published: 2018-05-18
album: Into the Blue: Contemporary Electro Pop 1
  type: MusicAlbum
  date published: 2018-05-18
album: Give Me Everything: Contemporary Electro Pop 4
  type: MusicAlbum
  date published: 2019-11-07