Pith Number

pith:AOFXIASV

pith:2011:AOFXIASVSP7K4E2HI45ZGN2IMU

not attested not anchored not stored refs pending

XMM-Newton observation of the persistent Be/NS X-ray binary pulsar RX J0440.9+4431

(2) INAF/OA Cagliari, 3), (3) IUSS Pavia, A. Tiengo (1, Italy, Italy), L. Sidoli (1), N. La Palombara (1), P. Esposito (2), S. Mereghetti (1) ((1) INAF/IASF Milano

arxiv:1112.5341 v1 · 2011-12-22 · 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{AOFXIASVSP7K4E2HI45ZGN2IMU}

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	2026-05-18T01:59:03.150728Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

038b74025593feae1347473b9337486513831603a93fbd29190b2826d4721a18

Aliases

arxiv: 1112.5341 · arxiv_version: 1112.5341v1 · doi: 10.48550/arxiv.1112.5341 · pith_short_12: AOFXIASVSP7K · pith_short_16: AOFXIASVSP7K4E2H · pith_short_8: AOFXIASV

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/AOFXIASVSP7K4E2HI45ZGN2IMU \
  | 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: 038b74025593feae1347473b9337486513831603a93fbd29190b2826d4721a18

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "706621a60baf201e3b1c8531af4a8cfb1116dfe6c31a9ab0518b313e89af1196",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-12-22T14:59:35Z",
    "title_canon_sha256": "1a4bea2aa6cb95471205e07df7542a3cf9b527631fe7ca61dde30cd22d1e28a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.5341",
    "kind": "arxiv",
    "version": 1
  }
}