Pith Number

pith:45B7SWU3

pith:2023:45B7SWU3VDGGLTIOJL7EBSHOFC

not attested not anchored not stored refs pending

The black widow pulsar J1641+8049 in the optical, radio and X-rays

A. Cabrera-Lavers, A. V. Karpova, A. Yu. Kirichenko, B. W. Meyers, D. A. Zyuzin, D. C. Good, E. A. L\'opez, E. Fonseca, F. A. Dong, I. H. Stairs, J. K. Swiggum, J. W. McKee, M. A. McLaughlin, M. R. Gilfanov, S. Geier, S. V. Zharikov, Yu. A. Shibanov

arxiv:2311.08688 v1 · 2023-11-15 · astro-ph.HE · 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{45B7SWU3VDGGLTIOJL7EBSHOFC}

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	2026-07-05T07:13:26.724908Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e743f95a9ba8cc65cd0e4afe40c8ee2892dbcece3cee83ffc1953b1b93accc45

Aliases

arxiv: 2311.08688 · arxiv_version: 2311.08688v1 · doi: 10.48550/arxiv.2311.08688 · pith_short_12: 45B7SWU3VDGG · pith_short_16: 45B7SWU3VDGGLTIO · pith_short_8: 45B7SWU3

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/45B7SWU3VDGGLTIOJL7EBSHOFC \
  | 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: e743f95a9ba8cc65cd0e4afe40c8ee2892dbcece3cee83ffc1953b1b93accc45

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ead28d2962e0052cd3d3b2eb6af702ea7138a7b49c0b22ab5e9231aeb627fbc",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2023-11-15T04:31:17Z",
    "title_canon_sha256": "1ec0b6d5609fb2b0ba214ef317aeae48ec89b75c8a661c7ed499d5936d2db0fc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2311.08688",
    "kind": "arxiv",
    "version": 1
  }
}