Pith Number

pith:J4B4ZGZ2

pith:2007:J4B4ZGZ2XWY3XJZYTMHOWYLTGU

not attested not anchored not stored refs pending

Generalised Inverse-Cowling Approximation for Polar $w$-mode Oscillations of Neutron Stars

J. Wu, P.T. Leung

arxiv:0707.1727 v1 · 2007-07-12 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{J4B4ZGZ2XWY3XJZYTMHOWYLTGU}

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	2026-07-04T17:04:38.786242Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4f03cc9b3abdb1bba7389b0eeb617335127dc5f4ee28daa0b2ab628d8f5c4891

Aliases

arxiv: 0707.1727 · arxiv_version: 0707.1727v1 · doi: 10.48550/arxiv.0707.1727 · pith_short_12: J4B4ZGZ2XWY3 · pith_short_16: J4B4ZGZ2XWY3XJZY · pith_short_8: J4B4ZGZ2

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/J4B4ZGZ2XWY3XJZYTMHOWYLTGU \
  | 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: 4f03cc9b3abdb1bba7389b0eeb617335127dc5f4ee28daa0b2ab628d8f5c4891

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c9af1f7f46b7b78e7162ee8e13c048ee47d2a9c52db78bde719388ed280fcaa6",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-07-12T02:28:34Z",
    "title_canon_sha256": "4f4be070157abbd89b53d0d3df60a31503f7a5fcf6fdff09e789c18042f15ac3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0707.1727",
    "kind": "arxiv",
    "version": 1
  }
}