Pith Number

pith:42QZ4OKS

pith:2009:42QZ4OKSFWO6IXMDA23DFZGLQJ

not attested not anchored not stored refs pending

The anatomy of the simplest Duflo-Zuker mass formula

Andres P. Zuker, Joel Mendoza-Temis, Jorge G.Hirsch

arxiv:0912.0882 v2 · 2009-12-04 · nucl-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{42QZ4OKSFWO6IXMDA23DFZGLQJ}

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	2026-05-18T02:24:45.892887Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6a19e39522d9de45d8306b632e4cb826418d65808273f528b473099e7da4d85

Aliases

arxiv: 0912.0882 · arxiv_version: 0912.0882v2 · doi: 10.48550/arxiv.0912.0882 · pith_short_12: 42QZ4OKSFWO6 · pith_short_16: 42QZ4OKSFWO6IXMD · pith_short_8: 42QZ4OKS

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/42QZ4OKSFWO6IXMDA23DFZGLQJ \
  | 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: e6a19e39522d9de45d8306b632e4cb826418d65808273f528b473099e7da4d85

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "453ad15d2220021e27217b46aaac5274aef8a4cfe173262c0fb4d408653480ca",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nucl-th",
    "submitted_at": "2009-12-04T15:44:22Z",
    "title_canon_sha256": "0ba80b098d4ca9f47932dcda1773e4e3d5436ab54c645ca88630c9a14a6cb10b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.0882",
    "kind": "arxiv",
    "version": 2
  }
}