Pith Number

pith:PG5XS33B

pith:2009:PG5XS33BAZHOXEEFMEDXYVIBOU

not attested not anchored not stored refs pending

XMM-Newton observations of SDSS J143030.22$-$001115.1: an unusually flat spectrum AGN

D. Fields, D. Grupe, E.C. Golowacz, R. Pogge, R. Williams, S. Mathur

arxiv:0906.4974 v1 · 2009-06-26 · 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{PG5XS33BAZHOXEEFMEDXYVIBOU}

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	2026-05-18T02:13:12.341584Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

79bb796f61064eeb908561077c5501752ddd49d4d3a5247df857af037acfece9

Aliases

arxiv: 0906.4974 · arxiv_version: 0906.4974v1 · doi: 10.48550/arxiv.0906.4974 · pith_short_12: PG5XS33BAZHO · pith_short_16: PG5XS33BAZHOXEEF · pith_short_8: PG5XS33B

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/PG5XS33BAZHOXEEFMEDXYVIBOU \
  | 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: 79bb796f61064eeb908561077c5501752ddd49d4d3a5247df857af037acfece9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cbf13f7d4c57681dffd5054ef9d9bdc8b9273db02f89f5f30544960e562f5bc6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-06-26T16:20:27Z",
    "title_canon_sha256": "de89d7f17d8c0ba51e230f77465257c6c5b49fc7e9e51eb98a89d1f8badac52d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.4974",
    "kind": "arxiv",
    "version": 1
  }
}