Pith Number

pith:EWERHLKX

pith:2018:EWERHLKXVKBJUYMRJM2FTK5YBB

not attested not anchored not stored refs pending

Static Data Structure Lower Bounds Imply Rigidity

Alexander Golovnev, Omri Weinstein, Zeev Dvir

arxiv:1811.02725 v3 · 2018-11-07 · cs.DS · cs.CC · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EWERHLKXVKBJUYMRJM2FTK5YBB}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-17T23:54:02.389872Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

258913ad57aa829a61914b3459abb80867e1668bf89f08fb5afd7a3008ede140

Aliases

arxiv: 1811.02725 · arxiv_version: 1811.02725v3 · doi: 10.48550/arxiv.1811.02725 · pith_short_12: EWERHLKXVKBJ · pith_short_16: EWERHLKXVKBJUYMR · pith_short_8: EWERHLKX

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/EWERHLKXVKBJUYMRJM2FTK5YBB \
  | 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: 258913ad57aa829a61914b3459abb80867e1668bf89f08fb5afd7a3008ede140

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83c22c805321ba91e17c97e3b0fbd4fd2ca367ae7e9b3b13b42cb05ed1e6ff11",
    "cross_cats_sorted": [
      "cs.CC",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-11-07T02:11:39Z",
    "title_canon_sha256": "42ca8d00bf8c554dcf27307b51b0727b85d4fc14f383e0f089f1bdd160d4582e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.02725",
    "kind": "arxiv",
    "version": 3
  }
}