Pith Number

pith:WNEGGUCU

pith:2013:WNEGGUCUJUNE2JQS5WWS6RE6RF

not attested not anchored not stored refs pending

An approach to first principles electronic structure calculation by symbolic-numeric computation

Akihito Kikuchi

arxiv:1306.3714 v1 · 2013-06-17 · physics.comp-ph · cs.SC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WNEGGUCUJUNE2JQS5WWS6RE6RF}

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	2026-05-17T23:40:27.193267Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3486350544d1a4d2612edad2f449e8960ce2680f6a1edc7bf64934eb67f17ad

Aliases

arxiv: 1306.3714 · arxiv_version: 1306.3714v1 · doi: 10.48550/arxiv.1306.3714 · pith_short_12: WNEGGUCUJUNE · pith_short_16: WNEGGUCUJUNE2JQS · pith_short_8: WNEGGUCU

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/WNEGGUCUJUNE2JQS5WWS6RE6RF \
  | 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: b3486350544d1a4d2612edad2f449e8960ce2680f6a1edc7bf64934eb67f17ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31ee853697d9f858ad46596086fe8b8b53d4373162624c67127a304f6d28309d",
    "cross_cats_sorted": [
      "cs.SC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2013-06-17T00:09:39Z",
    "title_canon_sha256": "f84fb7fc63bcf2ccf3ef0efb5c6207f576be94ef2c965a09bd780d3f86e5ee6c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.3714",
    "kind": "arxiv",
    "version": 1
  }
}