Pith Number

pith:P27P64UY

pith:2011:P27P64UYM2M2FSN27ASSOLDK66

not attested not anchored not stored refs pending

Limits of Preprocessing

Stefan Szeider

arxiv:1104.5566 v2 · 2011-04-29 · cs.AI · 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{P27P64UYM2M2FSN27ASSOLDK66}

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	2026-05-18T04:15:38.803020Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ebeff72986699a2c9baf825272c6af7979f41c07588429be8af034eb3a14552

Aliases

arxiv: 1104.5566 · arxiv_version: 1104.5566v2 · doi: 10.48550/arxiv.1104.5566 · pith_short_12: P27P64UYM2M2 · pith_short_16: P27P64UYM2M2FSN2 · pith_short_8: P27P64UY

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/P27P64UYM2M2FSN27ASSOLDK66 \
  | 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: 7ebeff72986699a2c9baf825272c6af7979f41c07588429be8af034eb3a14552

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ea7d66f9d41bd0692346c247b4104d64640b5507a59db24d47f9646d6cc4e44",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2011-04-29T08:31:41Z",
    "title_canon_sha256": "c530bfd84ab73b024f9e1986e361273010edee908d2659c412afdbb0d35b9b2c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.5566",
    "kind": "arxiv",
    "version": 2
  }
}