Pith Number

pith:4DQJ2NTJ

pith:2011:4DQJ2NTJSEFAGVALOQDMSZA3HF

not attested not anchored not stored refs pending

String Matching with Variable Length Gaps

David Kofoed Wind, Hjalte Wedel Vildh{\o}j, Inge Li Goertz, Philip Bille

arxiv:1110.2893 v1 · 2011-10-13 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4DQJ2NTJSEFAGVALOQDMSZA3HF}

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	2026-05-18T04:11:06.722294Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0e09d3669910a03540b7406c9641b394ef68d1aafd49c2543f6a1963b8e09fc

Aliases

arxiv: 1110.2893 · arxiv_version: 1110.2893v1 · doi: 10.48550/arxiv.1110.2893 · pith_short_12: 4DQJ2NTJSEFA · pith_short_16: 4DQJ2NTJSEFAGVAL · pith_short_8: 4DQJ2NTJ

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/4DQJ2NTJSEFAGVALOQDMSZA3HF \
  | 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: e0e09d3669910a03540b7406c9641b394ef68d1aafd49c2543f6a1963b8e09fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f7228e6c76135497088aee33274cf72ea54dee2c4c60d6df6fb784ece8be5c27",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2011-10-13T11:13:48Z",
    "title_canon_sha256": "045663c7c0cfd9e622d7090044ba3d4aaa83c4d39955162b592a2e6e59ce5c03"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.2893",
    "kind": "arxiv",
    "version": 1
  }
}