Pith Number

pith:IKPKYF2R

pith:2010:IKPKYF2RPUB5NGILAVZ2HJDYOR

not attested not anchored not stored refs pending

X-ray and multiwavelength view of NGC 4278. A LINER-Seyfert connection?

(2) Department of Sciences, (3) Astrophysics Group, B. Sabra (2), D. Porquet (1), France, G. Younes (1), J.N. Reeves(3), Keele), Keele University, Lebanon, M.G. Allen(1) ((1) Observatoire Astronomique de Strasbourg, N. Grosso (1), Notre Dame University Louaize

arxiv:1004.5134 v1 · 2010-04-28 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IKPKYF2RPUB5NGILAVZ2HJDYOR}

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	2026-05-18T02:07:45.404344Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

429eac17517d03d6990b0573a3a4787464c3deba9652a220db7afd0ccc451cd8

Aliases

arxiv: 1004.5134 · arxiv_version: 1004.5134v1 · doi: 10.48550/arxiv.1004.5134 · pith_short_12: IKPKYF2RPUB5 · pith_short_16: IKPKYF2RPUB5NGIL · pith_short_8: IKPKYF2R

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/IKPKYF2RPUB5NGILAVZ2HJDYOR \
  | 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: 429eac17517d03d6990b0573a3a4787464c3deba9652a220db7afd0ccc451cd8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "64be1b397efcc9612f02446b9d91e188a9555896bf7f0dd37af54ef52c5cbb56",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2010-04-28T20:16:29Z",
    "title_canon_sha256": "8001d35d652beb1264dfdf67dfbeecf193978a2045d4d64fc132c251424863e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.5134",
    "kind": "arxiv",
    "version": 1
  }
}