Epic: GOLDEN CHAIN in t27 -- anchors, contribution ledger, usage from receipts, many signers, a live atlas #8609

Brings the GOLDEN CHAIN design of gHashTag/golden-chain-international (Green Paper and White Paper v0.9, see gHashTag/golden-chain-international#140) into t27, the language and toolchain the network runs on. Every rule is written in .t27 and generated. Hand-written foreign code only shrinks (#8236).

What exists (2026-10-10)

• Language, compiler, numeric catalogue.
  • t27 has 109 formats in 13 clusters.
  • t27b checks 1258 of 1290 specs that the reference passes, and 33.9% of t27b is generated from .t27.
  • Arithmetic cores are verified on an Artix-7 board through the open flow.
• Signed receipts. Corpus and DDC receipts exist (t27b lab: signed corpus receipts and a base-vs-head equivalence check (Merkle roots over verdicts and asm outputs) #7576, verified: a signed DDC receipt of t27core and T732's verdict over its routes (Closes #7699) #7706), with a reproducible t27b build (theory(sieve): C9 measured, t27b builds bit-identical, t27c carries git abbrev and CARGO_HOME (Closes #8148) #8181). But there is one signer: the t27b lab, key a05db80f53c317f6.
• TriToken on Base Sepolia (testnet only). Ownership is renounced and there is no allocation. Its key registry still accepts any key.
• Universe Atlas on t27.ai. It is refreshed once a day through a bot PR (last refresh 2026-10-08), and its publish step is manual.
• Queen event bus (events.t27, slice 3) and the t27-bees GitHub App, which receives webhooks on Railway.

What is missing

• The anchor block (M0). t27's AGENTS.md has none yet, and the hub manifest format has not landed.
• Contribution accounting. No record yet of who wrote which spec, and how much verified compute used it.
• More than one signer. Without it, the t27b lab is a de facto chief validator, against S1.
• An external anchor, so the manifest is not circular (RT-4).
• A live atlas.
• Legal gates before any value flow. These are red lines, not tasks for an agent.

Plan

• golden_chain: the AGENTS.md anchor block as a .t27 spec, checked inside the existing t27c suite #8603 anchor block as a .t27 spec, checked in the existing suite (waits for the hub's manifest format)
• golden_chain: a contribution ledger from git history -- who wrote which .t27 spec, recomputable by anyone #8604 contribution ledger from git history, recomputable by anyone
• golden_chain: usage from receipts -- which specs verified compute actually ran #8605 usage from receipts (input_root leaves -> per-spec counts)
• receipts: more than one signer -- the t27b lab must not be the network's only validator #8606 k-of-n signers + transparency-log anchor; fix the key registry
• Universe Atlas: live fills from webhooks and the Queen event bus, the daily scan stays the verified baseline trinity#1587 live atlas: webhooks -> event bus -> SSE, daily scan as baseline
• golden_chain: payouts stay accounting until counsel -- study Drips, tea, Protocol Guild, Open Collective, RetroPGF #8607 payout research: Drips, tea, Protocol Guild, Open Collective, RetroPGF; securities risk stated plainly

Rules that do not bend

• No chief validators: authority is a protocol rule plus a merged PR, never a person.
• Accounting first, money last. No value moves until the white paper's gates are open: explorer-verified contracts, a fixed key registry, and written legal opinions.

Boundary

• specs/queen/events.t27