Pith Number

pith:ZYB7T5VE

pith:2025:ZYB7T5VEWDT67IHVEMLGCZ2KMG

not attested not anchored not stored refs pending

A Design Recipe and Recipe-Based Errors for Regular Expressions

Andr\'es M. Garced (Seton Hall University), David Anthony K. Fields (Seton Hall University), Josephine Des Rosiers (Penguin Random House), Marco T. Moraz\'an (Seton Hall University), Shamil Dzhatdoyev (Axoni, Tijana Mini\'c (University of Washington), USA)

arxiv:2508.03639 v1 · 2025-08-05 · cs.FL · cs.HC · cs.PL · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZYB7T5VEWDT67IHVEMLGCZ2KMG}

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	2026-07-05T11:49:00.335022Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ce03f9f6a4b0e7efa0f5231661674a61a5d8d218ce7f063554695082631dfeb0

Aliases

arxiv: 2508.03639 · arxiv_version: 2508.03639v1 · doi: 10.48550/arxiv.2508.03639 · pith_short_12: ZYB7T5VEWDT6 · pith_short_16: ZYB7T5VEWDT67IHV · pith_short_8: ZYB7T5VE

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/ZYB7T5VEWDT67IHVEMLGCZ2KMG \
  | 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: ce03f9f6a4b0e7efa0f5231661674a61a5d8d218ce7f063554695082631dfeb0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "552e5218b912de8b311a42e12a1e96085abd78dcfa400c0eb6f7601cedfd2324",
    "cross_cats_sorted": [
      "cs.HC",
      "cs.PL",
      "cs.SE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2025-08-05T16:53:33Z",
    "title_canon_sha256": "61787de40cd8bbca0a6c9d6c9d03fd3e2d2d9557d4bf1d4c9d0a5d933f696084"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.03639",
    "kind": "arxiv",
    "version": 1
  }
}