Two gaps the owner panel left open. First, a hidden TLD was only a UI
gate: anyone could still broadcast a REG under it and every indexer
admitted it. Second, there was no way to sell a name without trusting
the other side.
Co-sign rule (consensus, applied in lockstep by bns.js and
resolver-web.js): a REG under a TLD whose records at that height say
policy "cosign" or hidden 1 is indexed only if the transaction carries
the TLD's own certificate. The certificate can only be spent by the
owner's key and is re-issued to them in the same transaction, so it is
a co-signature nobody can forge and nothing is consumed. The TLD map
now keeps the TUPD timeline so policy is evaluated at the REG height.
Owners register under their private TLDs with the certificate added
from their own wallet; third parties under a "cosign" TLD build the
full transaction, sign their inputs and queue it at /api/cosign, where
the owner approves it from the dashboard (signCosignRequest refuses to
sign unless the certificate returns to the same locking script).
Marketplace: a listing is the seller's certificate input plus a price
output signed SIGHASH_SINGLE|ANYONECANPAY, stored by the gateway as a
bulletin board (/api/market, verified against the on-chain owner and
pruned when the certificate moves). The buyer completes it in one
transaction, so the seller is paid exactly when the name moves.
Cancelling also spends the certificate once so the offer is void.
Site: market.html, Sell sub-tab and Pending approvals in the portal,
Market link in nav and footer, six dictionaries extended, cache tags
bumped. Verified on chipnet: cosigned.sc registered by a throwaway
wallet through the queue with the .sc certificate back at the owner;
aloevera.test listed and delisted through the API.
Ariadne's resolver-web.js copy and the mobile Bns.java port still need
the co-sign rule; until then they admit REGs this index rejects.
Per-TLD certificates on a distinct TLD beacon supersede the legacy list-in-one-NFT
model. TLD label is the NFT commitment; TREG/TUPD payloads on the TLD beacon
mirror REG/UPD on the name beacon. Chipnet TLD beacon:
bchtest:qzc4c76vtw9nd49g6x8nmvc0jz62uvk4dc7hmpmerh
scripthash c85db10e106606273422b2733b2a6fb8b35a4d0e7dbfb20cf59bdb0833c008b8
* config.js, resolver-web.{js,d.ts} — TLD_BEACON + TLD_BEACON_SCRIPTHASH
* bns.js — KNOWN_OPS { REG, UPD, TREG, TUPD }, registerTld/updateTld/normalizeTld
* bns.js + resolver-web.js — buildIndex({enforceTld:false}) drops name REGs
whose TLD lacks a live TLD cert at their block height (mempool-friendly).
Lockstep across both files.
* lib/tld-index.js — buildTldSnapshot({history,txs}) → deterministic root over
canonicalised tlds[]. Pure, importable, and stable across insertion order.
* indexer/bns-indexer.js — BeaconIndex is multi-beacon; ws handler dispatches
by scripthash; new HTTP endpoint GET /tld-list.json + /health behind
BNS_HTTP_PORT; state file v1 → v2 migrates in fromJSON.
* publish-tld-mirror.mjs — S3 (floating + immutable content-addressed) plus
NIP-33 kind 30078 d:bns-tld-list to Nostr relays, signed via nostr-tools
(libauth's Schnorr differs from BIP-340 and relays reject it).
* seed-tld-beacon.mjs — idempotent chipnet seed. Current set on the beacon:
bch p2p bit nav test x asm neo gt sc sia com dex cex nt (15). `.com` is
held by the operator: cert on-chain, excluded from public registrar UI.
Design + docs:
* Decentralized.DNS/DESIGN-tld-registry.md — schema, enforcement,
operator-countersig gate, USD-tiered pricing floors, fee splits,
tracker/mirror mechanics, migration/grandfathering.
* INSTRUCTIONS.md §3 rewritten for the 4-step flow (TREG → UI → deploy →
republish snapshot).
* site/tlds/ — public docs page listing current TLDs + verification paths.
* site/sirius/register.html — dropdown removed; parallel search across
every TLD in the TLDS array, sorted available → taken → not-on-registry.
Config:
* ariadne.config.json tlds → [bch, p2p, bit, nav, test, x] (CA constraints;
on-chain registry is now the authoritative source, config is fallback).
* setup/install.ps1 — reads TLD list via fetchTldList (per-TLD registry)
with fallback to fetchBcnrTlds (legacy tls.bch list-NFT) then config.
Tests:
* test/tld-index.test.mjs — 30 self-contained checks (multi-beacon dispatch,
state migration, ws routing, snapshot shape + root recomputability).
* test/tld-enforcement.test.mjs — synthetic + live chipnet integration
(with-gate correctly drops all pre-seed names).
