Pith Number

pith:DEFUVDB6

pith:2009:DEFUVDB6M56IWV5XT3V7G5IIPQ

not attested not anchored not stored refs pending

XMM-{\em Newton} and FUSE Tentative Evidence for a WHIM filament along the Line of Sight to PKS~0558-504

D. Fields, F. Nicastro, I. Papadakis, L. Zappacosta, M. Elvis, M.L. Conciatore, S. Mathur, Y. Krongold

arxiv:0911.4504 v2 · 2009-11-23 · 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{DEFUVDB6M56IWV5XT3V7G5IIPQ}

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	2026-05-18T02:10:37.274850Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

190b4a8c3e677c8b57b79eebf375087c37a93b5690af19b58d05a97fe7a38ae2

Aliases

arxiv: 0911.4504 · arxiv_version: 0911.4504v2 · doi: 10.48550/arxiv.0911.4504 · pith_short_12: DEFUVDB6M56I · pith_short_16: DEFUVDB6M56IWV5X · pith_short_8: DEFUVDB6

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/DEFUVDB6M56IWV5XT3V7G5IIPQ \
  | 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: 190b4a8c3e677c8b57b79eebf375087c37a93b5690af19b58d05a97fe7a38ae2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1fba72c00d32540371fb9da0eb5fa3f0d9897219a3d86b4ae760055e4f4c31a9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-11-23T22:27:54Z",
    "title_canon_sha256": "7d51a4d3db6c57a83fd1464191d60fc2f24fa03f6a0cd0da15d9d776933fe8e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.4504",
    "kind": "arxiv",
    "version": 2
  }
}