Pith Number

pith:M3XA3ZLU

pith:2013:M3XA3ZLUBP3MBQMR7DOLLS6GJM

not attested not anchored not stored refs pending

GMRT discovery of PSR J1544+4937, an eclipsing black-widow pulsar identified with a Fermi LAT source

A. K. Harding, B. Bhattacharyya, D. Bhattacharya, D. L. Wood, E. C. Ferrara, F. Camilo, I. Cognard, J. Roy, K. S. Wood, M. Keith, M. Kerr, M. T. Wolff, P. F. Michelson, P. M. Saz Parkinson, P. R. den Hartog, P. S. Ray, R. W. Romani, S. Johnston, S. M. Ransom, Y. Gupta

arxiv:1304.7101 v2 · 2013-04-26 · astro-ph.HE · astro-ph.GA · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M3XA3ZLUBP3MBQMR7DOLLS6GJM}

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	2026-05-18T01:50:21.532749Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

66ee0de5740bf6c0c191f8dcb5cbc64b041bc00a8515b9440344f2d2120508dd

Aliases

arxiv: 1304.7101 · arxiv_version: 1304.7101v2 · doi: 10.48550/arxiv.1304.7101 · pith_short_12: M3XA3ZLUBP3M · pith_short_16: M3XA3ZLUBP3MBQMR · pith_short_8: M3XA3ZLU

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/M3XA3ZLUBP3MBQMR7DOLLS6GJM \
  | 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: 66ee0de5740bf6c0c191f8dcb5cbc64b041bc00a8515b9440344f2d2120508dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5700c2c558a6cca12b39f3a51bee5e05ea99c6352931c95da1eb30c0da7c56f0",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-04-26T09:15:15Z",
    "title_canon_sha256": "bf574cc3f9770b07e23ee14f04748abf4074128800f697d55d8d44e2c5341681"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.7101",
    "kind": "arxiv",
    "version": 2
  }
}