Pith Number

pith:GRWYILFX

pith:2015:GRWYILFXVUUP4MHF4ENVO64KOI

not attested not anchored not stored refs pending

How to refute a random CSP

David Witmer, Ryan O'Donnell, Sarah R. Allen

arxiv:1505.04383 v3 · 2015-05-17 · cs.CC · 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{GRWYILFXVUUP4MHF4ENVO64KOI}

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	2026-05-18T01:36:17.943067Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

346d842cb7ad28fe30e5e11b577b8a723485c087fbf4a66a2b2a22d1cf995480

Aliases

arxiv: 1505.04383 · arxiv_version: 1505.04383v3 · doi: 10.48550/arxiv.1505.04383 · pith_short_12: GRWYILFXVUUP · pith_short_16: GRWYILFXVUUP4MHF · pith_short_8: GRWYILFX

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/GRWYILFXVUUP4MHF4ENVO64KOI \
  | 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: 346d842cb7ad28fe30e5e11b577b8a723485c087fbf4a66a2b2a22d1cf995480

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "14bd3d338fe0db438ca1d5e0cc5d593daad16f132a5b2c148eff3ecae04e7df3",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2015-05-17T11:35:12Z",
    "title_canon_sha256": "ac00ba866f5daf7a2a59cc8eee7ddd682072c1324d4eabacdc3a3736087af31b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.04383",
    "kind": "arxiv",
    "version": 3
  }
}