Pith Number

pith:AVDVTF7X

pith:2009:AVDVTF7X34ARW7J7YQOXIBE5HE

not attested not anchored not stored refs pending

3C 33: another case of photoionized soft X-ray emission in radio galaxies

2), (2) Univ. Bologna, (3) ESA Madrid, (4) APC Paris, (5) Univ. Roma3), E. Torresi (1, G.G.C. Palumbo (2), G. Ponti (4), M. Guainazzi (3), P. Grandi (1), S. Bianchi (5) ((1) INAF-IASF Bologna

arxiv:0901.3351 v1 · 2009-01-21 · 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{AVDVTF7X34ARW7J7YQOXIBE5HE}

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	2026-07-04T17:14:16.657897Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

05475997f7df011b7d3fc41d74049d3905a750ee114529af0f475d13b245ad70

Aliases

arxiv: 0901.3351 · arxiv_version: 0901.3351v1 · doi: 10.48550/arxiv.0901.3351 · pith_short_12: AVDVTF7X34AR · pith_short_16: AVDVTF7X34ARW7J7 · pith_short_8: AVDVTF7X

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/AVDVTF7X34ARW7J7YQOXIBE5HE \
  | 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: 05475997f7df011b7d3fc41d74049d3905a750ee114529af0f475d13b245ad70

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "20ddb67ac9a96b1a33555a6df02155d28cf5d5f887eab7a29baca9b7826cf291",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-01-21T21:13:29Z",
    "title_canon_sha256": "5748154e97560c63841d072c058c2fd927a3ca806af39fc7c991a796c6824786"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.3351",
    "kind": "arxiv",
    "version": 1
  }
}