Pith Number

pith:WUQOPYMP

pith:2018:WUQOPYMPI27ZGET5NKPUUQJPCL

not attested not anchored not stored refs pending

In-depth study of long-term variability in the X-ray emission of the Be/X-ray binary system AX J0049.4-7323

A. Santangelo, C. Malacaria, E. Bozzo, L. Ducci, L. Ji, P. Romano

arxiv:1802.08205 v1 · 2018-02-22 · 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{WUQOPYMPI27ZGET5NKPUUQJPCL}

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	2026-05-18T00:13:27.593001Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b520e7e18f46bf93127d6a9f4a412f12f6e0b00a47cd840075580fb7a191741a

Aliases

arxiv: 1802.08205 · arxiv_version: 1802.08205v1 · doi: 10.48550/arxiv.1802.08205 · pith_short_12: WUQOPYMPI27Z · pith_short_16: WUQOPYMPI27ZGET5 · pith_short_8: WUQOPYMP

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/WUQOPYMPI27ZGET5NKPUUQJPCL \
  | 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: b520e7e18f46bf93127d6a9f4a412f12f6e0b00a47cd840075580fb7a191741a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d918d7079b71f57475db43ee408a5e334ca6a57a846e13682197ebc302327c1c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-02-22T18:00:15Z",
    "title_canon_sha256": "5ce340d4336dfd25b39dc253840c7040074752fa4b91e6c395946bf02ce782b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.08205",
    "kind": "arxiv",
    "version": 1
  }
}