Pith Number

pith:ZOUA5Q5V

pith:2013:ZOUA5Q5VQ3EB3REK6G6S5HMKG7

not attested not anchored not stored refs pending

The Tree Width of Separation Logic with Recursive Definitions

Adam Rogalewicz, Jiri Simacek, Radu Iosif

arxiv:1301.5139 v2 · 2013-01-22 · cs.LO · cs.FL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZOUA5Q5VQ3EB3REK6G6S5HMKG7}

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	2026-05-18T03:29:26.745194Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cba80ec3b586c81dc48af1bd2e9d8a37f673864db82387b9cebe8a802ecb842b

Aliases

arxiv: 1301.5139 · arxiv_version: 1301.5139v2 · doi: 10.48550/arxiv.1301.5139 · pith_short_12: ZOUA5Q5VQ3EB · pith_short_16: ZOUA5Q5VQ3EB3REK · pith_short_8: ZOUA5Q5V

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/ZOUA5Q5VQ3EB3REK6G6S5HMKG7 \
  | 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: cba80ec3b586c81dc48af1bd2e9d8a37f673864db82387b9cebe8a802ecb842b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "defd550d0de101a9652f21d3cefde46bf36b5fe10002fdc41b85e9f5d36758d0",
    "cross_cats_sorted": [
      "cs.FL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2013-01-22T11:05:35Z",
    "title_canon_sha256": "57886846dabcc50c5aafb74e66b452d68192b50a11e752551c913891a3c053d7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.5139",
    "kind": "arxiv",
    "version": 2
  }
}