Pith Number

pith:AHSPGMJW

pith:2013:AHSPGMJW2PW6MIKFUSUKUNZTRH

not attested not anchored not stored refs pending

Deciding $k$CFA is complete for EXPTIME

David Van Horn, Harry G. Mairson

arxiv:1311.5810 v1 · 2013-11-22 · cs.PL

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AHSPGMJW2PW6MIKFUSUKUNZTRH}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T03:06:23.192449Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

01e4f33136d3ede62145a4a8aa373389cb816a130d904e0c0f901d2a146d3280

Aliases

arxiv: 1311.5810 · arxiv_version: 1311.5810v1 · doi: 10.48550/arxiv.1311.5810 · pith_short_12: AHSPGMJW2PW6 · pith_short_16: AHSPGMJW2PW6MIKF · pith_short_8: AHSPGMJW

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/AHSPGMJW2PW6MIKFUSUKUNZTRH \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 01e4f33136d3ede62145a4a8aa373389cb816a130d904e0c0f901d2a146d3280

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "49c3e922156c7c410908ed3c55918ab8b249005c03e9c2321bccea513c9f1c37",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2013-11-22T16:50:48Z",
    "title_canon_sha256": "29e2140cd5c5082f3dea3e69e9cacc6ab856de76e23affb679c924250db0f0aa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.5810",
    "kind": "arxiv",
    "version": 1
  }
}