Pith Number

pith:ULIYERO2

pith:2013:ULIYERO2GWMC3GS6AAGOL7IFXD

not attested not anchored not stored refs pending

The X-ray under-luminosity of the O-type supergiants HD16691 and HD14947 revealed by XMM-Newton

M. De Becker

arxiv:1304.4253 v1 · 2013-04-15 · 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{ULIYERO2GWMC3GS6AAGOL7IFXD}

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	2026-05-18T01:50:32.482980Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2d18245da35982d9a5e000ce5fd05b8c1789b699f8996332dfa9ce44c534186

Aliases

arxiv: 1304.4253 · arxiv_version: 1304.4253v1 · doi: 10.48550/arxiv.1304.4253 · pith_short_12: ULIYERO2GWMC · pith_short_16: ULIYERO2GWMC3GS6 · pith_short_8: ULIYERO2

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/ULIYERO2GWMC3GS6AAGOL7IFXD \
  | 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: a2d18245da35982d9a5e000ce5fd05b8c1789b699f8996332dfa9ce44c534186

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "664edc43ea3010ee6e235a3a8f993b2986118d88e6e70ed992b7d55b2f8dd4a5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-04-15T20:13:49Z",
    "title_canon_sha256": "66ede75f75f1ccd1959a32f350fb0ff516d82ea3cd3c4318c4b58b63cbb608a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.4253",
    "kind": "arxiv",
    "version": 1
  }
}