Pith Number

pith:WCHM4BKC

pith:2004:WCHM4BKCEDVMP2OTUBOT37HGCR

not attested not anchored not stored refs pending

The null result of a search for pulsational variations of the surface magnetic field in the roAp star gamma Equulei

J. D. Landstreet, O. Kochukhov, T. Ryabchikova, W. W. Weiss

arxiv:astro-ph/0404528 v1 · 2004-04-27 · 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{WCHM4BKCEDVMP2OTUBOT37HGCR}

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	2026-07-04T16:43:39.317253Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b08ece054220eac7e9d3a05d3dfce614621385bdd50cb0cc41f825ac84c5f7f9

Aliases

arxiv: astro-ph/0404528 · arxiv_version: astro-ph/0404528v1 · doi: 10.48550/arxiv.astro-ph/0404528 · pith_short_12: WCHM4BKCEDVM · pith_short_16: WCHM4BKCEDVMP2OT · pith_short_8: WCHM4BKC

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/WCHM4BKCEDVMP2OTUBOT37HGCR \
  | 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: b08ece054220eac7e9d3a05d3dfce614621385bdd50cb0cc41f825ac84c5f7f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a5a4e551c963da5dae7a022d11944fb5fa50f679873214aaf3e541ef2b758595",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-04-27T12:07:39Z",
    "title_canon_sha256": "c416930924a162613fa175b32c8e87eed3e34075abde38f3e2a3934df6cf7a49"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0404528",
    "kind": "arxiv",
    "version": 1
  }
}