Pith Number

pith:EN3354YO

pith:2020:EN3354YONBH7NERTPPCQAUT7PR

not attested not anchored not stored refs pending

Graphs cannot be indexed in polynomial time for sub-quadratic time string matching, unless SETH fails

Alexandru I. Tomescu, Massimo Equi, Veli M\"akinen

arxiv:2002.00629 v2 · 2020-02-03 · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EN3354YONBH7NERTPPCQAUT7PR}

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.

Cited by

1 paper in Pith

Algorithms and Indexing Lower Bounds for Variable String Matching

Receipt and verification

First computed	2026-07-05T00:45:44.526673Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2377bef30e684ff692337bc500527f7c4a890e763ef24d3bdcaf8710661692af

Aliases

arxiv: 2002.00629 · arxiv_version: 2002.00629v2 · doi: 10.48550/arxiv.2002.00629 · pith_short_12: EN3354YONBH7 · pith_short_16: EN3354YONBH7NERT · pith_short_8: EN3354YO

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/EN3354YONBH7NERTPPCQAUT7PR \
  | 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: 2377bef30e684ff692337bc500527f7c4a890e763ef24d3bdcaf8710661692af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a25f6127b5339a9f51677b16e2458808387de1cb09d110debc8a82e53f20ed4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2020-02-03T10:01:34Z",
    "title_canon_sha256": "2cd3047e88fba37ce278787f4bb81a7c95f988e6d31fb672bda81f85f22e8f90"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.00629",
    "kind": "arxiv",
    "version": 2
  }
}