Pith Number

pith:ZIUTDOV5

pith:2009:ZIUTDOV5MJHU2QDALVGGWEDTAK

not attested not anchored not stored refs pending

Direct Evidence for Outflow of Metal-enriched Gas Along the Radio Jets of Hydra A

B. R. McNamara, C. C. Kirkpatrick, K. W. Cavagnolo, L. P. David, M. Gitti, M. W. Wise, P. E. J. Nulsen

arxiv:0909.2252 v2 · 2009-09-11 · astro-ph.GA · 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{ZIUTDOV5MJHU2QDALVGGWEDTAK}

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	2026-05-18T02:34:30.337157Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ca2931babd624f4d40605d4c6b10730294b0d4590ee8c24b18fc09c13e4c7cdc

Aliases

arxiv: 0909.2252 · arxiv_version: 0909.2252v2 · doi: 10.48550/arxiv.0909.2252 · pith_short_12: ZIUTDOV5MJHU · pith_short_16: ZIUTDOV5MJHU2QDA · pith_short_8: ZIUTDOV5

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/ZIUTDOV5MJHU2QDALVGGWEDTAK \
  | 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: ca2931babd624f4d40605d4c6b10730294b0d4590ee8c24b18fc09c13e4c7cdc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc30b2a24d9abb37be3a17fc6d441b99e7081db4a58376c5b49caafb407f5329",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-09-11T20:00:06Z",
    "title_canon_sha256": "4130138a75104201720520bb7f740c75458f1a22dceaebd715290c6b7cefe236"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.2252",
    "kind": "arxiv",
    "version": 2
  }
}