Pith Number

pith:RN365SAE

pith:2009:RN365SAEZ64X2VINBVBF3FBUWM

not attested not anchored not stored refs pending

Pseudospectral Calculation of the Wavefunction of Helium and the Negative Hydrogen Ion

David F. Chernoff, Paul E. Grabowski

arxiv:0909.1791 v2 · 2009-09-09 · physics.comp-ph · astro-ph.SR · physics.atom-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RN365SAEZ64X2VINBVBF3FBUWM}

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	2026-05-18T02:24:47.276586Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8b77eec804cfb97d550d0d425d9434b30a16f9d65d610078ecca2a73cc174a66

Aliases

arxiv: 0909.1791 · arxiv_version: 0909.1791v2 · doi: 10.48550/arxiv.0909.1791 · pith_short_12: RN365SAEZ64X · pith_short_16: RN365SAEZ64X2VIN · pith_short_8: RN365SAE

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/RN365SAEZ64X2VINBVBF3FBUWM \
  | 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: 8b77eec804cfb97d550d0d425d9434b30a16f9d65d610078ecca2a73cc174a66

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fdcd0e8793a927e15caa8089e67fdda972373ecf81716b11d9efccb37758cdec",
    "cross_cats_sorted": [
      "astro-ph.SR",
      "physics.atom-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2009-09-09T19:00:08Z",
    "title_canon_sha256": "bd5022c19569ba4e0fd1ef89091673ee52e5afb42380718521fcd773c1fc0971"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.1791",
    "kind": "arxiv",
    "version": 2
  }
}