John Sant'Ambrogio
type: MusicGroup
description: John Sant’Ambrogio (born June 12, 1932 in Glen Ridge, New Jersey) is an American cellist. He studied music at Lebanon Valley College (B.A., 1954) and at Ohio University (M.M., 1959). He studied cello
popularity: 3
followers: 12
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x50331d8376d6bf78c19453a3ae9e12234689a19700eab7a94b50981f07202eb0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953895
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953895
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0e7e6ddb-dd53-47f2-9869-bb74f24334e7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0e7e6ddb-dd53-47f2-9869-bb74f24334e7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0e7e6ddb-dd53-47f2-9869-bb74f24334e7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T05:46:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x50331d8376d6bf78c19453a3ae9e12234689a19700eab7a94b50981f07202eb0","name":"John Sant'Ambrogio","registered_at":"2026-06-15T18:39:20Z","symbol":"NIM0796874","token_address":"0xd5fc6b624d30c27dc8c7c76abb34010204c03e84","type":"artist","uuid":"0e7e6ddb-dd53-47f2-9869-bb74f24334e7"}
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 0x50331d8376d6bf78c19453a3ae9e12234689a19700eab7a94b50981f07202eb0. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0e7e6ddb-dd53-47f2-9869-bb74f24334e7.json and https://artists.proofprofile.net/proofs/artist/0e7e6ddb-dd53-47f2-9869-bb74f24334e7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
  text: {"copyright_id":"0x50331d8376d6bf78c19453a3ae9e12234689a19700eab7a94b50981f07202eb0","name":"John Sant'Ambrogio","registered_at":"2026-06-15T18:39:20Z","symbol":"NIM0796874","token_address":"0xd5fc6b624d30c27dc8c7c76abb34010204c03e84","type":"artist","uuid":"0e7e6ddb-dd53-47f2-9869-bb74f24334e7"}