Pith Number

pith:PJ42CHL4

pith:2025:PJ42CHL43UHSOMN3CIA22TLGUB

not attested not anchored not stored refs pending

A finer reparameterisation theorem for MSO and FO queries on strings

L\^e Th\`anh D\~ung Nguy\^en, Pawe{\l} Parys

arxiv:2512.06466 v2 · 2025-12-06 · 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{PJ42CHL43UHSOMN3CIA22TLGUB}

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	2026-05-25T02:01:10.573376Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a79a11d7cdd0f2731bb1201ad4d66a05612fa6df61298e4b7e3e92881a59bca

Aliases

arxiv: 2512.06466 · arxiv_version: 2512.06466v2 · doi: 10.48550/arxiv.2512.06466 · pith_short_12: PJ42CHL43UHS · pith_short_16: PJ42CHL43UHSOMN3 · pith_short_8: PJ42CHL4

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/PJ42CHL43UHSOMN3CIA22TLGUB \
  | 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: 7a79a11d7cdd0f2731bb1201ad4d66a05612fa6df61298e4b7e3e92881a59bca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a67ba6ae0b4f9f5940682e271725428f93baf4170b3de68d94721d7fe094fd38",
    "cross_cats_sorted": [
      "cs.FL"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2025-12-06T15:06:23Z",
    "title_canon_sha256": "89913ded4106efb38141c60bf27f697aacba5323fb2b0c0bab453917038c965c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2512.06466",
    "kind": "arxiv",
    "version": 2
  }
}