How to Prove Authorship of Your Work

Why Authorship Proof Matters

When someone steals your work and claims they created it, the burden of proof is on you. Knowing you own the copyright is not enough — you need evidence that you had the work first.

The question isn't "who owns this?" but "who can prove they had this file on this date?"

Methods, Ranked by Strength

1. Email Timestamps — Weak

Sending the file to yourself by email proves you had it on a certain date. But emails can be forged, timestamps depend on the provider, and they only prove you sent something — not what was in the attachment.

2. Cloud Storage — Better

Google Drive, Dropbox, and similar services show when you uploaded a file. But you're trusting a third party, and they could theoretically be subpoenaed or compromised.

3. Copyright Registration — Strong (US only)

Registering with the US Copyright Office creates a legal record. It's expensive ($35-$55), slow (months), and only applies in US jurisdiction. Most freelancers never do this for a single $500 gig.

4. Blockchain Timestamp — Strongest Practical Option

A blockchain timestamp creates a permanent, tamper-evident record that a specific file hash existed at a specific time. No single entity controls it. It's mathematically verifiable by anyone, even decades later.

With FreelanceShield, this costs $0.10 and takes 30 seconds:

1. Drop your file in the browser — it's hashed locally (SHA-256), never uploaded
2. Pay $0.10 USDC on Base — creates a permanent blockchain record
3. Get a PDF certificate with: file hash, timestamp, Ed25519 signature, QR code
4. The certificate includes a Python verification script — anyone can verify offline, even if our service disappears

What Makes Blockchain Proof Different

• No central authority. Once anchored on NEAR blockchain, no one — not us, not you, not the person who stole your work — can alter it
• Self-contained. The verification algorithm is printed on the PDF. No internet needed to verify the math
• Permanent. Blockchain records outlive any company, website, or service
• Privacy-first. Your file never leaves your browser. Only the hash is recorded

When to Timestamp

The critical rule: timestamp BEFORE you send the file to the client.

The proof establishes that the file existed in your hands before the client could have had access to it. If you timestamp after the dispute starts, the proof is much less useful.

FAQ

Does this replace copyright registration? No. But copyright registration is expensive and slow. This is cheap, instant, and covers the most important question: "who had this file first?"

Do I need to understand blockchain? No. You drop a file, pay 10 cents, get a PDF. The technology handles itself.

What if I don't have a crypto wallet? You can send $0.10 USDC from any exchange (Coinbase, Binance) to the AOTrust address and paste the transaction hash. No MetaMask needed.