Pith Number

pith:2Q4AFGFD

pith:2009:2Q4AFGFD4J7AN6WSU73GEX2HVF

not attested not anchored not stored refs pending

Spectral Analysis of the Accretion Flow in NGC 1052 with Suzaku

A. Marscher, A. Zensus, E. Ros, H. Aller, J. Irwin, J. Kerp, J. Tueller, K.A. Weaver, L.W. Brenneman, M. Aller, M. Kadler, S. Kaufmann, Y.Y. Kovalev

arxiv:0903.3583 v1 · 2009-03-20 · 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{2Q4AFGFD4J7AN6WSU73GEX2HVF}

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	2026-05-18T04:29:15.770655Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4380298a3e27e06fad2a7f6625f47a97aafdfc8b4a0262bc5b6911c9dc8c731

Aliases

arxiv: 0903.3583 · arxiv_version: 0903.3583v1 · doi: 10.48550/arxiv.0903.3583 · pith_short_12: 2Q4AFGFD4J7A · pith_short_16: 2Q4AFGFD4J7AN6WS · pith_short_8: 2Q4AFGFD

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/2Q4AFGFD4J7AN6WSU73GEX2HVF \
  | 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: d4380298a3e27e06fad2a7f6625f47a97aafdfc8b4a0262bc5b6911c9dc8c731

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7196b3bdc3d5782de58a05ce19584738955a245af2a02ab0de4879651ffe8597",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-03-20T18:28:13Z",
    "title_canon_sha256": "26c474364b1cf2852f70e04db33d9ec18204582271e3e6a9e2d5f61cc454bfdd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.3583",
    "kind": "arxiv",
    "version": 1
  }
}