Stephen D'Angelo
type: MusicGroup
genre: classical piano
popularity: 2
followers: 24
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5683357590200e17febc3059093f84e28fbb570ace3d6969e82608d460a4047b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c37aa2e3-ff98-4816-8e75-ce9da32eab0b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c37aa2e3-ff98-4816-8e75-ce9da32eab0b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c37aa2e3-ff98-4816-8e75-ce9da32eab0b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5683357590200e17febc3059093f84e28fbb570ace3d6969e82608d460a4047b","name":"Stephen D'Angelo","registered_at":"2026-06-20T20:09:12Z","symbol":"NIM1701292","token_address":"0x445881ee1e68f3627a638fc02b51894e4d69c5f4","type":"artist","uuid":"c37aa2e3-ff98-4816-8e75-ce9da32eab0b"}
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 0x5683357590200e17febc3059093f84e28fbb570ace3d6969e82608d460a4047b. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c37aa2e3-ff98-4816-8e75-ce9da32eab0b.json and https://artists.proofprofile.net/proofs/artist/c37aa2e3-ff98-4816-8e75-ce9da32eab0b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
  text: {"copyright_id":"0x5683357590200e17febc3059093f84e28fbb570ace3d6969e82608d460a4047b","name":"Stephen D'Angelo","registered_at":"2026-06-20T20:09:12Z","symbol":"NIM1701292","token_address":"0x445881ee1e68f3627a638fc02b51894e4d69c5f4","type":"artist","uuid":"c37aa2e3-ff98-4816-8e75-ce9da32eab0b"}