Pith Number

pith:RFALQI75

pith:2011:RFALQI75EGQ7C42FUE673VTPOX

not attested not anchored not stored refs pending

The discovery of the 401 Hz accreting millisecond pulsar IGR J17498-2921 in a 3.8 hr orbit

(2) ISDC, (3) INAF OA-Brera, (4) Univ. Palermo, (5) INAF OA-Cagliari), A.D'A\`i (4), A. Papitto (1), A. Riggio (5), C. Ferrigno (2), E. Bozzo (2), L. Burderi (1), R. Iaria (4) ((1) Univ. Cagliari, T. Di Salvo (4), T. M. Belloni (3)

arxiv:1111.1976 v1 · 2011-11-08 · 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{RFALQI75EGQ7C42FUE673VTPOX}

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	2026-05-18T01:59:43.610198Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8940b823fd21a1f17345a13dfdd66f75fd418462948b5c634fbae22c1fc2c111

Aliases

arxiv: 1111.1976 · arxiv_version: 1111.1976v1 · doi: 10.48550/arxiv.1111.1976 · pith_short_12: RFALQI75EGQ7 · pith_short_16: RFALQI75EGQ7C42F · pith_short_8: RFALQI75

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/RFALQI75EGQ7C42FUE673VTPOX \
  | 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: 8940b823fd21a1f17345a13dfdd66f75fd418462948b5c634fbae22c1fc2c111

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6a5553255fb99439fd8fd5dbe2e3174b067e3ea524c6466fed492ff34e1158b3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-11-08T17:10:12Z",
    "title_canon_sha256": "85fb345311413a374a4e3b14ac51730cb939c26a6f7078006cbf61ee89bab81b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.1976",
    "kind": "arxiv",
    "version": 1
  }
}