Pith Number

pith:PCG2XO5F

pith:2012:PCG2XO5FEGCWGZDAV2SP5U2QVX

not attested not anchored not stored refs pending

The Effective Fragment Molecular Orbital Method for Fragments Connected by Covalent Bonds

Casper Steinmann, Dmitri G. Fedorov, Jan H. Jensen

arxiv:1202.4935 v2 · 2012-02-22 · physics.chem-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{PCG2XO5FEGCWGZDAV2SP5U2QVX}

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	2026-05-18T03:50:22.903270Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

788dabbba52185636460aea4fed350aded5dcae1c9ed9fecfe414c8721c8f410

Aliases

arxiv: 1202.4935 · arxiv_version: 1202.4935v2 · doi: 10.48550/arxiv.1202.4935 · pith_short_12: PCG2XO5FEGCW · pith_short_16: PCG2XO5FEGCWGZDA · pith_short_8: PCG2XO5F

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/PCG2XO5FEGCWGZDAV2SP5U2QVX \
  | 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: 788dabbba52185636460aea4fed350aded5dcae1c9ed9fecfe414c8721c8f410

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f07e49d82a3edf118334d55c6b49e9e2983a712c8f768835b01324fde860812a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2012-02-22T15:06:33Z",
    "title_canon_sha256": "1fdb49fc5a2d0fc7e75d2f689ca6eef569e0d79c68de3979867dd3e1ac4c5650"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.4935",
    "kind": "arxiv",
    "version": 2
  }
}