Pith Number

pith:3OY76YUA

pith:2026:3OY76YUASQER7MRUDDGDJX3EKH

not attested not anchored not stored refs pending

LFPL: Revisited and Mechanized

Jan Hoffmann, Nathaniel Glover

arxiv:2605.12893 v1 · 2026-05-13 · cs.PL · cs.CC · 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{3OY76YUASQER7MRUDDGDJX3EKH}

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	2026-05-18T03:09:10.886282Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dbb1ff628094091fb23418cc34df6451e8bd648c2213b0395a0dcd986a7121aa

Aliases

arxiv: 2605.12893 · arxiv_version: 2605.12893v1 · doi: 10.48550/arxiv.2605.12893 · pith_short_12: 3OY76YUASQER · pith_short_16: 3OY76YUASQER7MRU · pith_short_8: 3OY76YUA

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/3OY76YUASQER7MRUDDGDJX3EKH \
  | 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: dbb1ff628094091fb23418cc34df6451e8bd648c2213b0395a0dcd986a7121aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "103c7e326333a6f6e410e4617a156637404dba6a235e55abd063c5b4379be214",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.LO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2026-05-13T02:15:26Z",
    "title_canon_sha256": "2be6e8ea1795af81c09547361897d09d64a54cb95d548788083376b9a840bcfa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.12893",
    "kind": "arxiv",
    "version": 1
  }
}