Pith Number

pith:PGXORD3C

pith:2010:PGXORD3CWWXXD72NFXIXANNDVZ

not attested not anchored not stored refs pending

Quantum Monte Carlo calculations of electronic excitation energies: the case of the singlet $n \to \pi^*$ (CO) transition in acrolein

C. J. Umrigar (LASSP), Julien Toulouse (LCT), Michel Caffarel (LPQ), Peter Reinhardt (LCT), Philip E. Hoggan (LASMEA)

arxiv:1012.5279 v1 · 2010-12-23 · physics.chem-ph · physics.comp-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{PGXORD3CWWXXD72NFXIXANNDVZ}

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	2026-05-18T04:32:35.455370Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

79aee88f62b5af71ff4d2dd17035a3ae48e2bdb40d706a84a141c0ad417b82a8

Aliases

arxiv: 1012.5279 · arxiv_version: 1012.5279v1 · doi: 10.48550/arxiv.1012.5279 · pith_short_12: PGXORD3CWWXX · pith_short_16: PGXORD3CWWXXD72N · pith_short_8: PGXORD3C

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/PGXORD3CWWXXD72NFXIXANNDVZ \
  | 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: 79aee88f62b5af71ff4d2dd17035a3ae48e2bdb40d706a84a141c0ad417b82a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c7d27aecf4edc2569a6874117caa295816e9a06cc1b32c37ba3195f2709e24dd",
    "cross_cats_sorted": [
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2010-12-23T19:20:55Z",
    "title_canon_sha256": "c4f0ef3284a7567ef3bb4323b9f2db3342516340886eea276fbd23db156cdb98"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.5279",
    "kind": "arxiv",
    "version": 1
  }
}