Pith Number

pith:HGAKVHZG

pith:2005:HGAKVHZGCRWTALF4D7JDZKPU45

not attested not anchored not stored refs pending

The Epsilon Calculus and Herbrand Complexity

Georg Moser, Richard Zach

arxiv:math/0510640 v1 · 2005-10-28 · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HGAKVHZGCRWTALF4D7JDZKPU45}

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	2026-05-18T02:18:24.142324Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3980aa9f26146d302cbc1fd23ca9f4e777788af7a6d69bbc46a43cf404aecaf9

Aliases

arxiv: math/0510640 · arxiv_version: math/0510640v1 · doi: 10.48550/arxiv.math/0510640 · pith_short_12: HGAKVHZGCRWT · pith_short_16: HGAKVHZGCRWTALF4 · pith_short_8: HGAKVHZG

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/HGAKVHZGCRWTALF4D7JDZKPU45 \
  | 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: 3980aa9f26146d302cbc1fd23ca9f4e777788af7a6d69bbc46a43cf404aecaf9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b4bddd709a3ff8752c27705134ede9517f0aee8157ce2c70a4229bb382bf9848",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.LO",
    "submitted_at": "2005-10-28T19:40:44Z",
    "title_canon_sha256": "8ec2f8774519bb9624792ff356af45af752a9389a997b44957d3b0927d98e7f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0510640",
    "kind": "arxiv",
    "version": 1
  }
}