Pith Number

pith:E2HWKBAC

pith:2009:E2HWKBACBAIP3IFVFSEIKCQKAM

not attested not anchored not stored refs pending

Inverse momentum expectation values for hydrogenic systems

David Elliott, Robert Delbourgo

arxiv:0904.4288 v1 · 2009-04-28 · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E2HWKBACBAIP3IFVFSEIKCQKAM}

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	2026-05-18T02:13:56.842604Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

268f6504020810fda0b52c88850a0a03127d4326f64c8a3adaac886074e258e4

Aliases

arxiv: 0904.4288 · arxiv_version: 0904.4288v1 · doi: 10.48550/arxiv.0904.4288 · pith_short_12: E2HWKBACBAIP · pith_short_16: E2HWKBACBAIP3IFV · pith_short_8: E2HWKBAC

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/E2HWKBACBAIP3IFVFSEIKCQKAM \
  | 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: 268f6504020810fda0b52c88850a0a03127d4326f64c8a3adaac886074e258e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "74b729cedc0d7b75decc5dfc37cc8922abbd415678be82f6e072e51ac2925dc7",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2009-04-28T00:46:04Z",
    "title_canon_sha256": "51999c97ac8d067efe73b4605b41cc6f26834a0ddad4c7f34dffe23f7e0eb26f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.4288",
    "kind": "arxiv",
    "version": 1
  }
}