Pith Number

pith:S2ELC7MN

pith:2013:S2ELC7MNKXM4C3WIGEJSRFTY7D

not attested not anchored not stored refs pending

The 54 days orbital period of AX J1820.5-1434 unveiled by Swift

A. D'A\`i, A. Segreto, G. Cusumano, N. Masetti, S. Campana, V. La Parola

arxiv:1305.3614 v2 · 2013-05-15 · 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{S2ELC7MNKXM4C3WIGEJSRFTY7D}

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	2026-05-18T01:49:56.746627Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9688b17d8d55d9c16ec83113289678f8dd1f9cc96288c16868558670423d0593

Aliases

arxiv: 1305.3614 · arxiv_version: 1305.3614v2 · doi: 10.48550/arxiv.1305.3614 · pith_short_12: S2ELC7MNKXM4 · pith_short_16: S2ELC7MNKXM4C3WI · pith_short_8: S2ELC7MN

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/S2ELC7MNKXM4C3WIGEJSRFTY7D \
  | 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: 9688b17d8d55d9c16ec83113289678f8dd1f9cc96288c16868558670423d0593

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2dbe7f782b8e99311fa54d15ce2cae03c549536ed267587740136c606e3144a5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-05-15T20:00:29Z",
    "title_canon_sha256": "13eccc09d23853825197514dda7fd844a16e72cec316c61804f75aa0e6b942fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.3614",
    "kind": "arxiv",
    "version": 2
  }
}