Pith Number

pith:AAVPKPG6

pith:2009:AAVPKPG6QFYVMREWKOIIQ2HGL5

not attested not anchored not stored refs pending

Lectures on Jacques Herbrand as a Logician

Christoph Benzmueller, Claus-Peter Wirth, Joerg Siekmann, Serge Autexier

arxiv:0902.4682 v5 · 2009-02-26 · cs.LO · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AAVPKPG6QFYVMREWKOIIQ2HGL5}

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	2026-05-18T02:51:06.836616Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

002af53cde817156449653908868e65f47a166f82bec3fe0cd1038b77096d88d

Aliases

arxiv: 0902.4682 · arxiv_version: 0902.4682v5 · doi: 10.48550/arxiv.0902.4682 · pith_short_12: AAVPKPG6QFYV · pith_short_16: AAVPKPG6QFYVMREW · pith_short_8: AAVPKPG6

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/AAVPKPG6QFYVMREWKOIIQ2HGL5 \
  | 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: 002af53cde817156449653908868e65f47a166f82bec3fe0cd1038b77096d88d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31d39851cef87f1d8e8da61fc32a37bb81d08c7afb064f54365ac19f6d7bcadc",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2009-02-26T19:59:17Z",
    "title_canon_sha256": "89d67065022c0f8932c3eb18c63858234fa7b2a30bbfcb7513d726ecdcc4c365"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.4682",
    "kind": "arxiv",
    "version": 5
  }
}