Pith Number

pith:MDZWOCZL

pith:2017:MDZWOCZLVIF2ORQ753VMK2ESVV

not attested not anchored not stored refs pending

Orbital optimization in the perfect pairing hierarchy. Applications to full-valence calculations on linear polyacenes

John Parkhill, Martin Head-Gordon, Susi Lehtola

arxiv:1705.01678 v3 · 2017-05-04 · cond-mat.str-el · 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{MDZWOCZLVIF2ORQ753VMK2ESVV}

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	2026-05-18T00:21:51.272693Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

60f3670b2baa0ba7461feeeac56892ad7db045dac78deb4eaef81c4e1d9a7e37

Aliases

arxiv: 1705.01678 · arxiv_version: 1705.01678v3 · doi: 10.48550/arxiv.1705.01678 · pith_short_12: MDZWOCZLVIF2 · pith_short_16: MDZWOCZLVIF2ORQ7 · pith_short_8: MDZWOCZL

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/MDZWOCZLVIF2ORQ753VMK2ESVV \
  | 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: 60f3670b2baa0ba7461feeeac56892ad7db045dac78deb4eaef81c4e1d9a7e37

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e24f836475f1247bea6cefa802e784a001595432e4ca21dc3118b1633c320e30",
    "cross_cats_sorted": [
      "physics.chem-ph",
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.str-el",
    "submitted_at": "2017-05-04T02:30:59Z",
    "title_canon_sha256": "f5086b750bcb793419db293a9ac431db7506d4e02e4aab2909995f7014c8932e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.01678",
    "kind": "arxiv",
    "version": 3
  }
}