Pith Number

pith:L5N4OPYE

pith:2011:L5N4OPYE4WMR6QGHF6B46M3Y7R

not attested not anchored not stored refs pending

A Doubly Exponentially Crumbled Cake

Andrea Francke, Heidi Gebauer, Ji\v{r}\'i Matou\v{s}ek, Takeaki Uno, Tobias Christ

arxiv:1104.0122 v1 · 2011-04-01 · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{L5N4OPYE4WMR6QGHF6B46M3Y7R}

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	2026-05-18T04:25:12.354913Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f5bc73f04e5991f40c72f83cf3378fc66b0f3b4adba54b1ff5a3e6e5c59092a

Aliases

arxiv: 1104.0122 · arxiv_version: 1104.0122v1 · doi: 10.48550/arxiv.1104.0122 · pith_short_12: L5N4OPYE4WMR · pith_short_16: L5N4OPYE4WMR6QGH · pith_short_8: L5N4OPYE

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/L5N4OPYE4WMR6QGHF6B46M3Y7R \
  | 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: 5f5bc73f04e5991f40c72f83cf3378fc66b0f3b4adba54b1ff5a3e6e5c59092a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7dda25aeb76b1141478fef7d172d223504c4389e3a6be89e7539240e9826f824",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2011-04-01T09:49:15Z",
    "title_canon_sha256": "2834f2c941a9835ef2137110f9f4187cb0b11dee762467cf8fe7728f64866f64"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.0122",
    "kind": "arxiv",
    "version": 1
  }
}