Pith Number

pith:PYZQYPDJ

pith:2022:PYZQYPDJLXTVRKPQD3FHJW2SEK

not attested not anchored not stored refs pending

Towards Concurrent Quantitative Separation Logic

Ira Fesefeldt, Joost-Pieter Katoen, Thomas Noll

arxiv:2207.02822 v3 · 2022-07-06 · cs.LO · 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{PYZQYPDJLXTVRKPQD3FHJW2SEK}

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	2026-07-05T09:12:51.883480Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e330c3c695de758a9f01eca74db5222ad07866b50f0bc7e98e6594bbfb3aa76

Aliases

arxiv: 2207.02822 · arxiv_version: 2207.02822v3 · doi: 10.48550/arxiv.2207.02822 · pith_short_12: PYZQYPDJLXTV · pith_short_16: PYZQYPDJLXTVRKPQ · pith_short_8: PYZQYPDJ

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/PYZQYPDJLXTVRKPQD3FHJW2SEK \
  | 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: 7e330c3c695de758a9f01eca74db5222ad07866b50f0bc7e98e6594bbfb3aa76

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b0cc7c9cd488544faacbf38968d13a6055bb72179799d069a05d2fea420258f",
    "cross_cats_sorted": [
      "cs.PL"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2022-07-06T17:27:28Z",
    "title_canon_sha256": "12a251c77882d62feeb55ccf4a31b1c8984780f64f89382b3c9e3f7728fd604d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2207.02822",
    "kind": "arxiv",
    "version": 3
  }
}