Pith Number

pith:4GX5QEGC

pith:2009:4GX5QEGCXC3NHZBTWKLQXCRJMK

not attested not anchored not stored refs pending

X-raying the Winds of Luminous Active Galaxies

B.P. Miller, G. Chartas, R.R. Gibson, S.C. Gallagher, W.N. Brandt

arxiv:0909.0958 v1 · 2009-09-04 · astro-ph.CO · astro-ph.GA · 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{4GX5QEGCXC3NHZBTWKLQXCRJMK}

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	2026-05-18T02:11:59.558373Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1afd810c2b8b6d3e433b2970b8a2962a621f075da185929b8958bb037bad0ec

Aliases

arxiv: 0909.0958 · arxiv_version: 0909.0958v1 · doi: 10.48550/arxiv.0909.0958 · pith_short_12: 4GX5QEGCXC3N · pith_short_16: 4GX5QEGCXC3NHZBT · pith_short_8: 4GX5QEGC

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/4GX5QEGCXC3NHZBTWKLQXCRJMK \
  | 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: e1afd810c2b8b6d3e433b2970b8a2962a621f075da185929b8958bb037bad0ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "326e1212ba4af728a510f362306831b3aeac1eea1cb3ee5b59874f7278e22fd4",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-09-04T21:15:39Z",
    "title_canon_sha256": "d89fecb7ef9efe3b11e00fb16a48363dbc540c644ccb6ea7af2b03b23d8405c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.0958",
    "kind": "arxiv",
    "version": 1
  }
}