Pith Number

pith:FNZLDF3Z

pith:2011:FNZLDF3ZAI7AJZ6CGW5D6NVKM6

not attested not anchored not stored refs pending

A Chandra study of the large-scale shock and cool filaments in Hydra A: Evidence for substantial gas dredge-up by the central outburst

Brian R. McNamara, Laurence P. David, Michael W. Wise, Myriam Gitti, Paul E. J. Nulsen

arxiv:1102.5397 v1 · 2011-02-26 · 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{FNZLDF3ZAI7AJZ6CGW5D6NVKM6}

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	2026-05-18T02:03:04.405715Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b72b19779023e04e7c235ba3f36aa67af8003a252690c607c71425204d5f30a

Aliases

arxiv: 1102.5397 · arxiv_version: 1102.5397v1 · doi: 10.48550/arxiv.1102.5397 · pith_short_12: FNZLDF3ZAI7A · pith_short_16: FNZLDF3ZAI7AJZ6C · pith_short_8: FNZLDF3Z

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/FNZLDF3ZAI7AJZ6CGW5D6NVKM6 \
  | 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: 2b72b19779023e04e7c235ba3f36aa67af8003a252690c607c71425204d5f30a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "629cf45b313c0793d992f08df970728ccbda7437115eb63e3598a7f5460d4e6b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-02-26T09:34:49Z",
    "title_canon_sha256": "b52f6a423aff69e16d7dfdd33aa3b024ad9469fa7d1dc4756c16fbf6c6d89dbb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.5397",
    "kind": "arxiv",
    "version": 1
  }
}