Pith Number

pith:ISGQIZUR

pith:1998:ISGQIZURNEGEIV5HQDQAS4HTNE

not attested not anchored not stored refs pending

The REX survey: a search for Radio Emitting X-ray sources

A. Caccianiga, A. Wolter, I. M. Gioia, R. Della Ceca, T. Maccacaro

arxiv:astro-ph/9810254 v1 · 1998-10-16 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ISGQIZURNEGEIV5HQDQAS4HTNE}

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	2026-07-04T16:07:06.835309Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

448d046691690c4457a780e00970f36915b8112ade42a526e693b3a051fb232f

Aliases

arxiv: astro-ph/9810254 · arxiv_version: astro-ph/9810254v1 · doi: 10.48550/arxiv.astro-ph/9810254 · pith_short_12: ISGQIZURNEGE · pith_short_16: ISGQIZURNEGEIV5H · pith_short_8: ISGQIZUR

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/ISGQIZURNEGEIV5HQDQAS4HTNE \
  | 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: 448d046691690c4457a780e00970f36915b8112ade42a526e693b3a051fb232f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce90bfb2790621fc410f623cdde37395dd5d5f357a2f568bdcb5740869e5b074",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-10-16T16:38:27Z",
    "title_canon_sha256": "81e851ed7eb2b30743c3bde55d0d05d0cde9a22973ff03a75312589969887b4f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9810254",
    "kind": "arxiv",
    "version": 1
  }
}