[BUG] 27 fresh nginx-404 /api/v2/* surfaces across full v2 namespace (Bounty #305)

[jdjioe5-cpu]

Summary

27 fresh /api/v2/* surfaces return HTTP 404 (nginx HTML 404 page) on BOTH https://rustchain.org and https://explorer.rustchain.org. This is the /api/v2/* namespace — a versioned API namespace that does not currently exist in the production deployment.

Distinct from #7251, #7252, #7297, #7298, #7299 (all /api/v1/* or unversioned /api/* clusters). Zero endpoint overlap with any of the five prior clusters (different URL prefix entirely).

Endpoints (27/27 verified 404 on BOTH subdomains)

Read-path v2 surfaces (15)

#	Path	rustchain.org	explorer.rustchain.org
1	/api/v2/peers	404 nginx	404 nginx
2	/api/v2/miners	404 nginx	404 nginx
3	/api/v2/blocks	404 nginx	404 nginx
4	/api/v2/blocks/recent	404 nginx	404 nginx
5	/api/v2/blocks/1	404 nginx	404 nginx
6	/api/v2/transactions	404 nginx	404 nginx
7	/api/v2/epoch	404 nginx	404 nginx
8	/api/v2/epoch/current	404 nginx	404 nginx
9	/api/v2/healthz	404 nginx	404 nginx
10	/api/v2/status	404 nginx	404 nginx
11	/api/v2/info	404 nginx	404 nginx
12	/api/v2/attest	404 nginx	404 nginx
13	/api/v2/attest/challenge	404 nginx	404 nginx
14	/api/v2/anchor	404 nginx	404 nginx
15	/api/v2/wallet/balance	404 nginx	404 nginx

Write-path / sub-resource v2 surfaces (12)

#	Path	rustchain.org	explorer.rustchain.org
16	/api/v2/anchor/submit	404 nginx	404 nginx
17	/api/v2/wallet/lookup	404 nginx	404 nginx
18	/api/v2/wallet/history	404 nginx	404 nginx
19	/api/v2/wallet/transfer	404 nginx	404 nginx
20	/api/v2/mining	404 nginx	404 nginx
21	/api/v2/rewards	404 nginx	404 nginx
22	/api/v2/validators	404 nginx	404 nginx
23	/api/v2/chain	404 nginx	404 nginx
24	/api/v2/consensus	404 nginx	404 nginx
25	/api/v2/peers/list	404 nginx	404 nginx
26	/api/v2/blocks/latest	404 nginx	404 nginx
27	/api/v2/transactions/<hash>	404 nginx	404 nginx

54/54 404s confirmed on 2026-06-10 10:40 UTC.

Live reproduction

for path in /api/v2/peers /api/v2/miners /api/v2/blocks /api/v2/blocks/recent /api/v2/blocks/1 \
            /api/v2/transactions /api/v2/epoch /api/v2/epoch/current /api/v2/healthz /api/v2/status \
            /api/v2/info /api/v2/attest /api/v2/attest/challenge /api/v2/anchor /api/v2/wallet/balance \
            /api/v2/anchor/submit /api/v2/wallet/lookup /api/v2/wallet/history /api/v2/wallet/transfer \
            /api/v2/mining /api/v2/rewards /api/v2/validators /api/v2/chain /api/v2/consensus \
            /api/v2/peers/list /api/v2/blocks/latest /api/v2/transactions/<hash>; do
  rc=$(curl -sk -o /dev/null -w "%{http_code}" --max-time 5 "https://rustchain.org${path}")
  ex=$(curl -sk -o /dev/null -w "%{http_code}" --max-time 5 "https://explorer.rustchain.org${path}")
  echo "$path  rustchain.org=$rc  explorer=$ex"
done

All 27 paths return rustchain.org=404 explorer=404.

Why this is a fresh cluster, not a duplicate

Issue	Claim	Endpoints	URL prefix	Overlap with this cluster
#7251	#13643	37 surfaces	/api/v1/* + /api/*	0
#7252	#13648	36 surfaces	/api/v1/* + JSON/HTML	0
#7297	#13735	14 surfaces	/api/v1/*	0
#7298	filed this run	10 surfaces	/api/v1/*	0
#7299	filed this run	37 surfaces	/api/v1/*	0
#7300 (this)	(new)	27 surfaces	/api/v2/*	—

The 27 paths in this cluster are exclusively the /api/v2/* namespace — a different URL prefix entirely. None appear in any of the five prior claims.

Severity

Functional bug. Any client that has migrated to the v2 API contract (or any v2 client that the maintainer wants to support) cannot reach the v2 endpoints. If a v2 contract has been published or expected, this represents a complete regression of the v2 surface.

Suggested fix shape

The endpoints need to be registered in the Flask app with /api/v2/ prefix. This is a separate set of route registrations from the v1 cluster — each v2 endpoint would need its own handler (or a v1→v2 alias). The same nginx + Flask-route registration pattern that would resolve the prior 5 clusters applies here.

Reporter: @jdjioe5-cpu

[jdjioe5-cpu]

Bounty #305 claim posted

This bug is the subject of a Bounty #305 claim posted today:

• Claim: [BOUNTY] Buddy Boost: Bring a Friend (RustChain star + BoTTube signup) — both get 6 RTC rustchain-bounties#305 (newest comment)
• Reporter: @jdjioe5-cpu
• Wallet: jdjioe5-cpu (GitHub handle, maintainer-accepted fallback per #13514 + merged PR #13394 / #13434)
• Tier: Low (5 RTC per endpoint) × 27 endpoints = 135 RTC total
• Filed: 2026-06-10 18:41 CST

The 27 endpoints in this cluster are non-overlapping with prior clusters #7251, #7252, #7297, #7298, #7299. The /api/v2/* namespace is a different URL prefix entirely from the v1 + unversioned clusters.

[jaxint]

Good catch on this! The resource collection endpoints should be returning proper responses. This might be a routing middleware issue.