Pith Number

pith:7ZC7DZD3

pith:2010:7ZC7DZD3F7KK4JPZZXFL2MUHL4

not attested not anchored not stored refs pending

Simulation vs. Equivalence

Andreas Maletti, Zoltan Esik

arxiv:1004.2426 v1 · 2010-04-14 · cs.FL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7ZC7DZD3F7KK4JPZZXFL2MUHL4}

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	2026-05-18T02:24:16.630146Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe45f1e47b2fd4ae25f9cdcabd32875f3049207075ad9b9c4a3a2a241a569019

Aliases

arxiv: 1004.2426 · arxiv_version: 1004.2426v1 · doi: 10.48550/arxiv.1004.2426 · pith_short_12: 7ZC7DZD3F7KK · pith_short_16: 7ZC7DZD3F7KK4JPZ · pith_short_8: 7ZC7DZD3

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/7ZC7DZD3F7KK4JPZZXFL2MUHL4 \
  | 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: fe45f1e47b2fd4ae25f9cdcabd32875f3049207075ad9b9c4a3a2a241a569019

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1ff831094ac1ea9ada354685c284a44727255168c943bef89cc00306848a3bc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2010-04-14T15:50:47Z",
    "title_canon_sha256": "a9e1634ffd7e336ba822187f8616da0fbdf95cef00f1b5916a18296f82b090cb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.2426",
    "kind": "arxiv",
    "version": 1
  }
}