Pith Number

pith:Q3EPFWBE

pith:2026:Q3EPFWBER2IY4HBEMOCMLJ7NCK

not attested not anchored not stored refs pending

Parameterized Verification of Deterministic MPI Programs

Stephen F. Siegel

arxiv:2607.18049 v1 · 2026-07-20 · cs.PL · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q3EPFWBER2IY4HBEMOCMLJ7NCK}

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	2026-07-21T02:22:13.468322Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86c8f2d8248e918e1c246384c5a7ed12a9c8306861622b32ba5c16dd736b05d7

Aliases

arxiv: 2607.18049 · arxiv_version: 2607.18049v1 · doi: 10.48550/arxiv.2607.18049 · pith_short_12: Q3EPFWBER2IY · pith_short_16: Q3EPFWBER2IY4HBE · pith_short_8: Q3EPFWBE

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/Q3EPFWBER2IY4HBEMOCMLJ7NCK \
  | 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: 86c8f2d8248e918e1c246384c5a7ed12a9c8306861622b32ba5c16dd736b05d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8df26d905035fd54ed407bf3853b7ae56c8cd440ca9c26c34bc325c3db3afcd4",
    "cross_cats_sorted": [
      "cs.LO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2026-07-20T15:19:00Z",
    "title_canon_sha256": "e5e07ffcafd155a2e819a6283315b9d02b0c7b91af7d45390f9469cf67b4dbff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.18049",
    "kind": "arxiv",
    "version": 1
  }
}