Pith Number

pith:W2VPLHOL

pith:2013:W2VPLHOL3OB2JRRHI765NVIARQ

not attested not anchored not stored refs pending

Ultra-Luminous X-Ray Sources in the Most Metal Poor Galaxies

A. H. Prestwich, A. Zezas, F. E. Jackson, M. Tsantaki, R. Foltz, T. Linden, T. P. Roberts, V. Kalogera

arxiv:1302.6203 v1 · 2013-02-25 · 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{W2VPLHOL3OB2JRRHI765NVIARQ}

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	2026-05-18T01:51:28.757060Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6aaf59dcbdb83a4c62747fdd6d5008c3d848266c80f998e6d1062c3751dddfd

Aliases

arxiv: 1302.6203 · arxiv_version: 1302.6203v1 · doi: 10.48550/arxiv.1302.6203 · pith_short_12: W2VPLHOL3OB2 · pith_short_16: W2VPLHOL3OB2JRRH · pith_short_8: W2VPLHOL

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/W2VPLHOL3OB2JRRHI765NVIARQ \
  | 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: b6aaf59dcbdb83a4c62747fdd6d5008c3d848266c80f998e6d1062c3751dddfd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3fc85b87f72b965ceba31cce0f2ac31a692482e09b38c37d63faa2dc017165c",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-02-25T19:39:20Z",
    "title_canon_sha256": "fcb2bb9c92c429788d277de58dbbf793c96686f8df890217d10c9ae8457a6a52"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.6203",
    "kind": "arxiv",
    "version": 1
  }
}