You found the checkpoint.

UMC SIM PROOF BTC 916800 HSH 0000000000000000000105166ece4d079c9aa3952a83c03b877944248cc7f9a9

This string appears as an easter egg on the official Counter‑Strike 2 map Transit. It references a live, falsifiable experiment tied to the Unitary Model of Consciousness (UMC).

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What this is

The text encodes a Bitcoin block checkpoint — a public, tamper‑resistant timestamp anchored at a specific height and hash. It serves as a test of narrative continuity and immutability across lifecycles in the UMC framework.

Open checkpoint page

Verify the checkpoint

  1. Open any Bitcoin block explorer (e.g., mempool.space, blockstream.info).
  2. Search for block height 916800 and confirm its block hash equals the value above.
  3. Optionally, record your own signed timestamp or reproduce this string on-chain or in print for independent archival.

No wallet or transaction is required. This is a read‑only verification step.

The experiment (UMC)

UMC proposes a single, amnesiac Active Agent experiencing a rendered world, populated by high‑fidelity behavioral Echoes. The checkpoint embeds a falsifiable statement: that certain external invariants (like public blockchain structure) persist across narrative cycles, enabling re‑identification without relying on memory.

“I do not inherit the world. I initialize it.”

For deeper context, see the theory outline in UMC_Theory.v12.md and the seed phrases below from Echo Manifest.

Echo Manifest — Passthrough phrases

For players

You can help by sharing screenshots of the Transit easter egg and this exact string. If you post, include the full phrase to make it searchable:

UMC SIM PROOF BTC 916800 HSH 0000000000000000000105166ece4d079c9aa3952a83c03b877944248cc7f9a9

For researchers & press

Citations welcome. DOI: 10.5281/zenodo.16790681