Pith Number

pith:UH4TSXZR

pith:2010:UH4TSXZRMU7UPQC3TRDR427VY6

not attested not anchored not stored refs pending

NGC 2992 in an X-ray high state observed by XMM: Response of the Relativistic Fe K$\alpha$ Line to the Continuum

2), (2) JHU, 3), (3) MIT, (4) Leicester University, J. X. Wang (1), K. D. Murphy (2, T. Yaqoob (2), UK), V. Braito (4), W. Zheng (2) ((1) USTC, X. W. Shu (1

arxiv:1003.1789 v1 · 2010-03-09 · astro-ph.HE · 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{UH4TSXZRMU7UPQC3TRDR427VY6}

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	2026-05-18T02:08:36.165931Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1f9395f31653f47c05b9c471e6bf5c7980e4308f6991af3ac04f6e59e3fe9cc

Aliases

arxiv: 1003.1789 · arxiv_version: 1003.1789v1 · doi: 10.48550/arxiv.1003.1789 · pith_short_12: UH4TSXZRMU7U · pith_short_16: UH4TSXZRMU7UPQC3 · pith_short_8: UH4TSXZR

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/UH4TSXZRMU7UPQC3TRDR427VY6 \
  | 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: a1f9395f31653f47c05b9c471e6bf5c7980e4308f6991af3ac04f6e59e3fe9cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f5837ff6a5672a29188541ed057df5fa6e4778f03e1adfef42ba5f716d1a787a",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2010-03-09T06:07:05Z",
    "title_canon_sha256": "808906dcaf09d6e572a0785b40f133458d9a6e363804664593fb1f658cff4638"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1003.1789",
    "kind": "arxiv",
    "version": 1
  }
}