Pith Number

pith:IVH7KPUI

pith:2009:IVH7KPUINRDFMIHXDJWPY5ZMAF

not attested not anchored not stored refs pending

Optical response of small closed-shell sodium clusters

George Pal, Georgios Lefkidis, Hans Christian Schneider, Wolfgang Huebner

arxiv:0912.4037 v1 · 2009-12-20 · cond-mat.mtrl-sci

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IVH7KPUINRDFMIHXDJWPY5ZMAF}

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	2026-05-18T02:10:15.186536Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

454ff53e886c465620f71a6cfc772c014b2f8df0841ee83da515911d0cc35003

Aliases

arxiv: 0912.4037 · arxiv_version: 0912.4037v1 · doi: 10.48550/arxiv.0912.4037 · pith_short_12: IVH7KPUINRDF · pith_short_16: IVH7KPUINRDFMIHX · pith_short_8: IVH7KPUI

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/IVH7KPUINRDFMIHXDJWPY5ZMAF \
  | 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: 454ff53e886c465620f71a6cfc772c014b2f8df0841ee83da515911d0cc35003

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1d3abb60b7df36b237cbc33816ff98e62f55b5c83e66ee2bf7ab81af53550288",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2009-12-20T18:16:04Z",
    "title_canon_sha256": "36c91738ef573ee839a50630327af0e2d361b30f2e89e2a81fd19df87170d79b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.4037",
    "kind": "arxiv",
    "version": 1
  }
}