Pith Number

pith:AJ6OMMSI

pith:2018:AJ6OMMSIQTF2IW45D342YS742A

not attested not anchored not stored refs pending

A new, clean catalogue of extragalactic non-nuclear X-ray sources in nearby galaxies

D. J. Walton, H. P. Earnshaw, M. J. Middleton, S. Mateos, T. P. Roberts

arxiv:1812.04684 v1 · 2018-12-11 · 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{AJ6OMMSIQTF2IW45D342YS742A}

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	2026-05-17T23:56:44.623132Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

027ce6324884cba45b9d1ef9ac4bfcd01cbdbe036038622ae23ddd661659087d

Aliases

arxiv: 1812.04684 · arxiv_version: 1812.04684v1 · doi: 10.48550/arxiv.1812.04684 · pith_short_12: AJ6OMMSIQTF2 · pith_short_16: AJ6OMMSIQTF2IW45 · pith_short_8: AJ6OMMSI

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/AJ6OMMSIQTF2IW45D342YS742A \
  | 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: 027ce6324884cba45b9d1ef9ac4bfcd01cbdbe036038622ae23ddd661659087d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "90364aedfe01d0d79433de216285715e552faa10f574670a71d7aab7928df1b1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-12-11T20:50:29Z",
    "title_canon_sha256": "e18a582bd81018af3017adc061c699e5e8185ce9235daba08459f893334e71d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.04684",
    "kind": "arxiv",
    "version": 1
  }
}