Pith Number

pith:5KINIKP7

pith:2019:5KINIKP7G5VAFOO7FGIMWGCMXL

not attested not anchored not stored refs pending

The semicentennial binary system PSR J2032+4127 at periastron: X-ray photometry, optical spectroscopy and SPH modelling

A. G. Lyne, A.T. Okazaki, B. Stappers, C.-Y. Ng, I.A. Steele, M. J. Coe, M. Kerr, Paul S. Ray, T.J. Johnson, Wynn C.G. Ho

arxiv:1903.02084 v1 · 2019-02-21 · 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{5KINIKP7G5VAFOO7FGIMWGCMXL}

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	2026-05-17T23:51:29.597371Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ea90d429ff376a02b9df2990cb184cbacdc92b0d7bfba2d04e6c226420e494c2

Aliases

arxiv: 1903.02084 · arxiv_version: 1903.02084v1 · doi: 10.48550/arxiv.1903.02084 · pith_short_12: 5KINIKP7G5VA · pith_short_16: 5KINIKP7G5VAFOO7 · pith_short_8: 5KINIKP7

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/5KINIKP7G5VAFOO7FGIMWGCMXL \
  | 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: ea90d429ff376a02b9df2990cb184cbacdc92b0d7bfba2d04e6c226420e494c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "39a93935c0afa9b472f8229bafe25c1b3bd309362724ce3be8bf9a972de982a6",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-02-21T10:44:02Z",
    "title_canon_sha256": "99bbf42978525afada8ff8b927697d3b91ee851d4b26a5c472c42f2f01de6db0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.02084",
    "kind": "arxiv",
    "version": 1
  }
}