Pith Number

pith:P3O3G3X5

pith:2009:P3O3G3X5NQPPYZFJBS765XPPHU

not attested not anchored not stored refs pending

Spectroscopic identifications of Spitzer sources in the SWIRE/XMM-NEWTON/ELAIS-S1 field: a large fraction of Active Galactic Nuclei with high F(24micron)/F(R) ratio

A. Cimatti, A. Comastri, A. Franceschini, C. Feruglio, C. Gruppioni, C. Lonsdale, C. Vignali, F. Cocchia, F. Fiore, F. La Franca, F. Pozzi, G. Smith, G. Zamorani, I. Matute, L. Pozzetti, M. Brusa, M. Polletta, M. Rowan-Robinson, N. Sacchi, R. Maiolino, S. Berta, S. Oliver, S. Puccetti

arxiv:0909.2535 v1 · 2009-09-14 · 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{P3O3G3X5NQPPYZFJBS765XPPHU}

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	2026-05-18T02:34:30.187440Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7eddb36efd6c1efc64a90cbfeeddef3d14bcb021347555b0519e0b0a95fcbff3

Aliases

arxiv: 0909.2535 · arxiv_version: 0909.2535v1 · doi: 10.48550/arxiv.0909.2535 · pith_short_12: P3O3G3X5NQPP · pith_short_16: P3O3G3X5NQPPYZFJ · pith_short_8: P3O3G3X5

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/P3O3G3X5NQPPYZFJBS765XPPHU \
  | 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: 7eddb36efd6c1efc64a90cbfeeddef3d14bcb021347555b0519e0b0a95fcbff3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "45147398582ea50890e0bd7149fb8de11165c127e365ab1a44c7e4d4cdcd069c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-09-14T12:52:23Z",
    "title_canon_sha256": "5ff5f48c76dac3e2c0c76e7cfd17600063d4fbcbc661318d2928192b1960a049"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.2535",
    "kind": "arxiv",
    "version": 1
  }
}