Pith Number

pith:UZGCOXCX

pith:2009:UZGCOXCXR52ZCHSCODZX7LG7HX

not attested not anchored not stored refs pending

A long-term optical - X-ray correlation in 4U 1957+11

3, 4), Cardiff University (3) Open University (4) University of Glamorgan (5) University of Southampton), D. M. Russell (1), E. Breedt (5), F. Lewis (2, J. S. Clark (3), P. Roche (2, R. P. Fender (5) ((1) University of Amsterdam (2) Faulkes Telescope Project

arxiv:0911.4501 v1 · 2009-11-23 · 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{UZGCOXCXR52ZCHSCODZX7LG7HX}

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	2026-05-18T02:10:37.296746Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a64c275c578f75911e4270f37facdf3dd389cbc3083341ed061c7d66ed3b0dfa

Aliases

arxiv: 0911.4501 · arxiv_version: 0911.4501v1 · doi: 10.48550/arxiv.0911.4501 · pith_short_12: UZGCOXCXR52Z · pith_short_16: UZGCOXCXR52ZCHSC · pith_short_8: UZGCOXCX

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/UZGCOXCXR52ZCHSCODZX7LG7HX \
  | 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: a64c275c578f75911e4270f37facdf3dd389cbc3083341ed061c7d66ed3b0dfa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7150f7990085528224371a9909a6594d2265eafa606764221a075b6017f50f97",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-11-23T22:09:26Z",
    "title_canon_sha256": "0121a77fd5d6ccc35fd6cb502102aaec5a0ce1daf2e262fe76ae216b3d3b10d1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.4501",
    "kind": "arxiv",
    "version": 1
  }
}