Pith Number

pith:ZCAEJDAO

pith:2011:ZCAEJDAOAS2MOVQ2H4SGT4KDNS

not attested not anchored not stored refs pending

Ab initio calculation of UV-Vis absorption spectra of a single molecule chlorophyll a: Comparison study between RHF/CIS, TDDFT, and semi-empirical methods

Sparisoma Viridi, Veinardi Suendo

arxiv:1105.3766 v2 · 2011-05-19 · physics.chem-ph · physics.bio-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{ZCAEJDAOAS2MOVQ2H4SGT4KDNS}

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	2026-05-18T02:59:48.667189Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c880448c0e04b4c7561a3f2469f1436c97eca82d731919e1569ab3835e97f976

Aliases

arxiv: 1105.3766 · arxiv_version: 1105.3766v2 · doi: 10.48550/arxiv.1105.3766 · pith_short_12: ZCAEJDAOAS2M · pith_short_16: ZCAEJDAOAS2MOVQ2 · pith_short_8: ZCAEJDAO

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/ZCAEJDAOAS2MOVQ2H4SGT4KDNS \
  | 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: c880448c0e04b4c7561a3f2469f1436c97eca82d731919e1569ab3835e97f976

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9d066b9eefaf57e66a7f6c80feb208a0138867ac8172c41ca2803a8986e71d5",
    "cross_cats_sorted": [
      "physics.bio-ph"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2011-05-19T00:14:42Z",
    "title_canon_sha256": "1c3836304081f1bb8bce569788e55046d68f594c0bafe49e9865b7993302b5cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.3766",
    "kind": "arxiv",
    "version": 2
  }
}