Pith Number

pith:4A4EHPFJ

pith:2013:4A4EHPFJXBNNKWNBN4CU4QZXJ3

not attested not anchored not stored refs pending

Concavity Effects on the Optical Properties of Aromatic Hydrocarbons

Alice Ruini, Annalisa Fasolino, Caterina Cocchi, Deborah Prezzi, Elisa Molinari, Marilia J. Caldas

arxiv:1306.2766 v1 · 2013-06-12 · cond-mat.mes-hall

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4A4EHPFJXBNNKWNBN4CU4QZXJ3}

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	2026-05-18T02:26:18.869727Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e03843bca9b85ad559a16f054e43374ef69c57da1323470b53486f1eaffbb0d2

Aliases

arxiv: 1306.2766 · arxiv_version: 1306.2766v1 · doi: 10.48550/arxiv.1306.2766 · pith_short_12: 4A4EHPFJXBNN · pith_short_16: 4A4EHPFJXBNNKWNB · pith_short_8: 4A4EHPFJ

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/4A4EHPFJXBNNKWNBN4CU4QZXJ3 \
  | 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: e03843bca9b85ad559a16f054e43374ef69c57da1323470b53486f1eaffbb0d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5592cf90fb911fbbacda066cd950152a3b25d6314e6a436e7b886266cc145bbc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2013-06-12T09:41:25Z",
    "title_canon_sha256": "50d4326846901721188be3f5041cd1630180161ff5b67ba00451d025e2a152fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.2766",
    "kind": "arxiv",
    "version": 1
  }
}