1. Sign in with your email — we’ll send a one-time link.
Carve an idea. Anchor it to Bitcoin. Forever.
You saw it coming — the market move, the election, the company that would crater — and you said so. But a screenshot can be faked, and “I told you so” isn’t a track record.
Carve your prediction into The Tower: dated, tamper-proof, anchored to Bitcoin, verifiable by anyone — stamped before the outcome.
Carve your first prediction — freePredictions are one door. The Tower hashes whatever you write, timestamps it, and anchors it to the Bitcoin blockchain — every hour. The result is a dated record no one, not even us, can fake or alter.
Pick the moment it fixes for you:
Stake your claim. Prove you called it.
Analysts, pundits, forecasters, crypto builders. Open tier — first carve free, then $5.
Proof you had it first — before the patent.
Founders and inventors. Sealed tier — encrypted in your browser, we never see it, only you hold the key. $20.
You can’t patent an idea. You can still own the date you had it.
Strategies, frameworks, methodologies, pitch concepts, investment theses. Sealed tier — $20, ciphertext only.
A letter to the future. Opens on the date you set.
Parents, couples, founders, future-self letters. Time Capsule tier — $25, auto-unlocks and emails you on the day.
Coined a word or phrase? Claim the language.
Doomscrolling, Web 2.0, the Streisand effect — coinage goes viral, credit rarely follows. Open tier — $5.
Words meant to outlast you — and us.
Bitcoin is the permanence layer; The Tower is just the doorway. Any tier works.
A vault that unlocks itself in 2, 5, or 10 years.
drand timelock encryption — the decryption key is born from the passage of time. No custodian, no key escrow. $100.
1. Sign in with your email — we’ll send a one-time link.
2. Pick a tier and type your idea. Sealed, Time Capsule and Buried Treasure encrypt in your browser before we ever see it.
3. Every hour, entries are batched into a Merkle tree and anchored to Bitcoin via OpenTimestamps.
4. Pull a shareable proof receipt — cryptographic, independently verifiable, court-grade.
Not our word — math. Every entry is SHA-256 hashed, batched into a Merkle tree, and anchored to the Bitcoin blockchain via OpenTimestamps. Your receipt proves the date with cryptography that no one — not The Tower, not anyone — can forge or backdate.
Don’t trust us: verify any receipt yourself, offline ↗ — no Tower account, no Tower servers.
Your first Open carve is free.
Carve something →