Pith Number

pith:ROGX6WXW

pith:2013:ROGX6WXWTDXIOO5W3Z5GFBAPTP

not attested not anchored not stored refs pending

X-ray emission from the luminous O-type subdwarf HD 49798 and its compact companion

A. Tiengo, G.L. Israel, L.Stella, N. La Palombara, N. Sartore, P. Esposito, S. Mereghetti

arxiv:1304.1653 v1 · 2013-04-05 · astro-ph.HE · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ROGX6WXWTDXIOO5W3Z5GFBAPTP}

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	2026-05-18T01:50:42.589389Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8b8d7f5af698ee873bb6de7a62840f9bce5374275c1761daf08e8c2dc7acb4bf

Aliases

arxiv: 1304.1653 · arxiv_version: 1304.1653v1 · doi: 10.48550/arxiv.1304.1653 · pith_short_12: ROGX6WXWTDXI · pith_short_16: ROGX6WXWTDXIOO5W · pith_short_8: ROGX6WXW

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/ROGX6WXWTDXIOO5W3Z5GFBAPTP \
  | 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: 8b8d7f5af698ee873bb6de7a62840f9bce5374275c1761daf08e8c2dc7acb4bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7acbbf5e6e468dc6dfebcba6c7395114a6ab2e01be4218d7c69450f825ca8f74",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-04-05T09:20:05Z",
    "title_canon_sha256": "305da09705946275b91a2c7f94dc142b34b9f2460df32bfcc098da84acadc7c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.1653",
    "kind": "arxiv",
    "version": 1
  }
}