Put it on the record
permanently.

Create a simple contract or declaration, or notarize any file or piece of text. Sign it with your existing digital identity - email, X post, Github gist, Reddit post, passkey, or Telegram. Agreebase writes the record to the Base blockchain where it can be verified permanently.

Sealed Notarization Hash only

Preamble to the U.S. Constitution, 1787

AGR-5BEG-G44W-N9MQ-U4N4

The text that was notarized. Not published on-chain.

We the People of the United States, in Order to form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defence, promote the general Welfare, and secure the Blessings of Liberty to ourselves and our Posterity, do ordain and establish this Constitution for the United States of America.

SHA-256 of the source text.

sha256 9bb5c9cde7df5fba2bfdba61ee0c21a01d91490c9d2fca54453300e0b264516d

Deterministic. Identical text produces this identical hash. Any change produces an entirely different one.

“insure”→8c23877c9b44… “ensure”→27ce25259481…

The full record written to Base. Read it on the blockchain

Agreebase.com - AGR-5BEG-G44W-N9MQ-U4N4

Content hash: sha256:9bb5c9cde7df5fba2bfdba61ee0c21a01d91490c9d2fca54453300e0b264516d

Content type: text
Hash algorithm: sha256
Label: Preamble to the U.S. Constitution, 1787 (Hash-only)
Metadata hash: sha256:fbde09050bb611351c4bc208d3f006964e43a6a970abbde84108ec5d4400ef8b
Completed: 2026-07-23T10:11Z

View on BaseScan

Transaction: 0x48c44e…b0d769e4
Sealed: 23 Jul 2026

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