Pith Number

pith:O4DVTHBN

pith:2009:O4DVTHBNPZNGPJ2LXHFDE6JI7O

not attested not anchored not stored refs pending

Synchrotron Emission from Elliptical Galaxies Consequent to AGN outbursts

A. Spitkovsky, J. P. Ostriker, L. Ciotti, Y.-F. Jiang

arxiv:0904.4918 v2 · 2009-04-30 · 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{O4DVTHBNPZNGPJ2LXHFDE6JI7O}

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	2026-05-18T04:29:43.219229Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7707599c2d7e5a67a74bb9ca327928fb91dd2a8250c1f9a02e33eba7a0bfea92

Aliases

arxiv: 0904.4918 · arxiv_version: 0904.4918v2 · doi: 10.48550/arxiv.0904.4918 · pith_short_12: O4DVTHBNPZNG · pith_short_16: O4DVTHBNPZNGPJ2L · pith_short_8: O4DVTHBN

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/O4DVTHBNPZNGPJ2LXHFDE6JI7O \
  | 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: 7707599c2d7e5a67a74bb9ca327928fb91dd2a8250c1f9a02e33eba7a0bfea92

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e70d720f2cf2f8d707701be8ec3e1508230435c1a94f1af9e9bd9cdbd3c8fad2",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-04-30T19:06:59Z",
    "title_canon_sha256": "ef705b356d2bfe290f842ce1cac28ff8e629a9252f87593f6747cf4f8d7fddd0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.4918",
    "kind": "arxiv",
    "version": 2
  }
}