Pith Number

pith:L32L5KAX

pith:2009:L32L5KAXXDPDZK7IVBQWJWRJ4G

not attested not anchored not stored refs pending

X-ray variability of AGNs in the soft and the hard X-ray bands

A.R. Rao, D. Bose, J.K. Pendharkar, R. Misra, V.K. Agrawal, V.R. Chitnis

arxiv:0903.5205 v1 · 2009-03-30 · astro-ph.GA · astro-ph.CO · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{L32L5KAXXDPDZK7IVBQWJWRJ4G}

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	2026-05-18T04:29:15.511525Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ef4bea817b8de3cabe8a86164da29e1b8a0e2d1828edec1653f442f3ee60127

Aliases

arxiv: 0903.5205 · arxiv_version: 0903.5205v1 · doi: 10.48550/arxiv.0903.5205 · pith_short_12: L32L5KAXXDPD · pith_short_16: L32L5KAXXDPDZK7I · pith_short_8: L32L5KAX

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/L32L5KAXXDPDZK7IVBQWJWRJ4G \
  | 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: 5ef4bea817b8de3cabe8a86164da29e1b8a0e2d1828edec1653f442f3ee60127

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "499ced1468e6753f7beb6b2f942f634bbe0cc6676d3a43c116eb13ea79e6e038",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-03-30T12:26:51Z",
    "title_canon_sha256": "87aeac9c15197a1fc5a7cc35ed4c6dc7d1d6aad4bb65e57a4c49e09cc6b975f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.5205",
    "kind": "arxiv",
    "version": 1
  }
}