Pith Number

pith:E6A2XESO

pith:2011:E6A2XESO4MJBM5H4LNDDNAQPFQ

not attested not anchored not stored refs pending

The Spitzer Spectroscopic Survey of the Small Magellanic Cloud (S4MC): Probing the Physical State of Polycyclic Aromatic Hydrocarbons in a Low-Metallicity Environment

Adam K. Leroy, A. G. G. M. Tielens, Aigen Li, Alberto D. Bolatto, B. T. Draine, Caroline Bot, Frank P. Israel, Jacco Th. van Loon, James G. Ingalls, James M. Jackson, J. D. T. Smith, Joshua D. Simon, Karin M. Sandstrom, M\'onica Rubio, Sne\v{z}ana Stanimirovi\'c

arxiv:1109.0999 v1 · 2011-09-05 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E6A2XESO4MJBM5H4LNDDNAQPFQ}

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	2026-05-18T04:06:45.976633Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2781ab924ee3121674fc5b4636820f2c3974b39dd36958e3b9afa3aee70ea2f7

Aliases

arxiv: 1109.0999 · arxiv_version: 1109.0999v1 · doi: 10.48550/arxiv.1109.0999 · pith_short_12: E6A2XESO4MJB · pith_short_16: E6A2XESO4MJBM5H4 · pith_short_8: E6A2XESO

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/E6A2XESO4MJBM5H4LNDDNAQPFQ \
  | 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: 2781ab924ee3121674fc5b4636820f2c3974b39dd36958e3b9afa3aee70ea2f7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f69c32ae5012e17fbe2960214253d3e5f49c1b3c8c63574f24aab6cbb5822c36",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-09-05T20:00:46Z",
    "title_canon_sha256": "40e8b6a62bbe945fe0c09506ac14d194a35ac87465c231dc1dd2517d59cd9207"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.0999",
    "kind": "arxiv",
    "version": 1
  }
}