Pith Number

pith:FDXKFCLS

pith:2013:FDXKFCLS5WC2XN4NBAE4ZY3WPS

not attested not anchored not stored refs pending

Optimal damping algorithm for unrestricted Hartree-Fock calculations

Jun-ichi Yamamoto, Yuji Mochizuki

arxiv:1302.6099 v1 · 2013-02-25 · 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{FDXKFCLS5WC2XN4NBAE4ZY3WPS}

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	2026-05-18T00:25:12.217823Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28eea28972ed85abb78d0809cce3767c9b114569fbb7c7104d85b90fc0845194

Aliases

arxiv: 1302.6099 · arxiv_version: 1302.6099v1 · doi: 10.48550/arxiv.1302.6099 · pith_short_12: FDXKFCLS5WC2 · pith_short_16: FDXKFCLS5WC2XN4N · pith_short_8: FDXKFCLS

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/FDXKFCLS5WC2XN4NBAE4ZY3WPS \
  | 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: 28eea28972ed85abb78d0809cce3767c9b114569fbb7c7104d85b90fc0845194

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c647d86dea33c855e4271fba472d426793880512d11e993564ebbbdaf5d6ec49",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2013-02-25T14:14:11Z",
    "title_canon_sha256": "30cd295914751805b11080b09ff8c7e13e51178c93726a976b03f86b9bda9d09"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.6099",
    "kind": "arxiv",
    "version": 1
  }
}