Pith Number

pith:OH4V3A5X

pith:2009:OH4V3A5XKWOOTSNEVLPMFBVVMH

not attested not anchored not stored refs pending

Polycyclic Aromatic Hydrocarbons in Galaxies at z~0.1: the Effect of Star Formation and AGN

Benjamin D. Johnson, Christopher D. Martin, David Schiminovich, J. M. van der Hulst, Lucimara P. Martins, Marie A. Treyer, Mark Seibert, Matthew J. O'Dowd, S. Charlot, Ted K. Wyder, Timothy M. Heckman

arxiv:0909.2279 v1 · 2009-09-11 · 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{OH4V3A5XKWOOTSNEVLPMFBVVMH}

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	2026-05-18T02:34:30.303154Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71f95d83b7559ce9c9a4aadec286b561f56c8c27e339a54f1c5ee60bf7966718

Aliases

arxiv: 0909.2279 · arxiv_version: 0909.2279v1 · doi: 10.48550/arxiv.0909.2279 · pith_short_12: OH4V3A5XKWOO · pith_short_16: OH4V3A5XKWOOTSNE · pith_short_8: OH4V3A5X

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/OH4V3A5XKWOOTSNEVLPMFBVVMH \
  | 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: 71f95d83b7559ce9c9a4aadec286b561f56c8c27e339a54f1c5ee60bf7966718

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc6b5498054b5763afb9ce2d3ac6103544714a1ace641084a3e166f100ecd499",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-09-11T21:39:10Z",
    "title_canon_sha256": "62367d27bf775a505f846e92ba46ed934b62e154b571f9f7f42b626a0c67bb9d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.2279",
    "kind": "arxiv",
    "version": 1
  }
}