Pith Number

pith:K7RTWPDW

pith:2005:K7RTWPDWVALI7XDUGKAZEO2CK3

not attested not anchored not stored refs pending

XMM-Newton reveals ~100 new LMXBs in M31 from variability studies

C. Tonkin, J.P. Osborne, L. Shaw Greening, R. Barnard, U. Kolb

arxiv:astro-ph/0509533 v1 · 2005-09-19 · 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{K7RTWPDWVALI7XDUGKAZEO2CK3}

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	2026-05-18T01:07:30.668802Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57e33b3c76a8168fdc743281923b4256d36e7608b6d1bb4d6f77cb75b8225e7f

Aliases

arxiv: astro-ph/0509533 · arxiv_version: astro-ph/0509533v1 · doi: 10.48550/arxiv.astro-ph/0509533 · pith_short_12: K7RTWPDWVALI · pith_short_16: K7RTWPDWVALI7XDU · pith_short_8: K7RTWPDW

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/K7RTWPDWVALI7XDUGKAZEO2CK3 \
  | 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: 57e33b3c76a8168fdc743281923b4256d36e7608b6d1bb4d6f77cb75b8225e7f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f4d99bdce68d115948a68d7e988b79fb38a1a5da0e1643c471129654773edb55",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-09-19T11:06:38Z",
    "title_canon_sha256": "6fc6a416f9df509e5fa372f8ea7398f7b0a39f4023385adeae67d6015206a0e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0509533",
    "kind": "arxiv",
    "version": 1
  }
}