Knowledge-Proof Receipts
Cryptographic proof of existence, integrity, and provenance
Every version of your work automatically generates a signed provenance receipt containing content hashes, timestamps, and storage pointers. These receipts provide tamper-evident proof that can be independently verified.
Each receipt is signed with our rotating keys and contains SHA-256 hashes of your content. Any modification to the work or receipt can be detected instantly.
Every receipt includes an exact timestamp of when it was issued, providing legal proof of when your work existed in its current form.
Receipts and metadata are automatically mirrored to decentralized storage, ensuring availability even if primary systems are unavailable.
Anyone can verify receipt authenticity using our public keys and the mirror URLs. No need to trust our infrastructure for verification.
Content & Integrity
- • SHA-256 hash of the complete work bundle
- • Metadata digest for tamper detection
- • Version number and change notes
- • Root ARK identifier
Temporal Data
- • Precise issued-at timestamp
- • Version creation date
- • Last modification timestamp
Storage Pointers
- • Primary storage key and location
- • Decentralized mirror URL
- • Backup storage references
- • Content-addressed identifiers
Cryptographic Data
- • Signer key identifier (rotated regularly)
- • Digital signature for verification
- • Algorithm specifications
Download the Receipt
Access the receipt from the work's "Provenance" tab or via the API
Verify the Signature
Use our public keys to verify the JWS signature authenticity
Check Content Integrity
Compare the SHA-256 hash with the actual content from storage pointers
Validate Storage Mirrors
Confirm the decentralized mirror contains identical content
We run nightly fixity checks comparing primary storage with decentralized mirrors.
- • Automatic quarantine on mismatch
- • Immediate rebuild from mirrors
- • Public status updates
Post-GA, we plan to batch daily Merkle roots of all receipts and anchor them on a public blockchain. This provides an immutable, publicly verifiable timestamp without requiring users to interact with blockchain technology.
Are receipts generated automatically?
Yes, every version of every work automatically generates a signed provenance receipt. This happens transparently without any action required from you.
Can I verify receipts without NobleID?
Absolutely. Receipts are designed to be independently verifiable using our public keys and the decentralized mirror URLs. You don't need to trust our infrastructure.
What happens if NobleID goes offline?
Your receipts and content remain accessible through the decentralized mirrors. The verification process works independently of our primary infrastructure.
Do receipts have legal standing?
Receipts provide cryptographic proof of existence and timing that can serve as evidence in legal proceedings. However, legal recognition varies by jurisdiction.
Can I download and archive receipts?
Yes, you can download receipts individually from the work's Provenance tab or export them in bulk through your dashboard or our API.