Pith Number

pith:WPDUWK5X

pith:2003:WPDUWK5XTV7C5YFZS2RDMY3VNH

not attested not anchored not stored refs pending

The magnetic field of M31 from multi-wavelength radio polarization observations

A. Fletcher, A. Shukurov, E.M. Berkhuijsen, R. Beck

arxiv:astro-ph/0310258 v1 · 2003-10-09 · 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{WPDUWK5XTV7C5YFZS2RDMY3VNH}

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.

Cited by

1 paper in Pith

Cosmology-Independent Constraints on Irreducible Magnetic Monopole Background

Receipt and verification

First computed	2026-07-04T16:37:30.789154Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3c74b2bb79d7e2ee0b996a236637569f26da26b9d7746cf5237a65474e5396a

Aliases

arxiv: astro-ph/0310258 · arxiv_version: astro-ph/0310258v1 · doi: 10.48550/arxiv.astro-ph/0310258 · pith_short_12: WPDUWK5XTV7C · pith_short_16: WPDUWK5XTV7C5YFZ · pith_short_8: WPDUWK5X

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/WPDUWK5XTV7C5YFZS2RDMY3VNH \
  | 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: b3c74b2bb79d7e2ee0b996a236637569f26da26b9d7746cf5237a65474e5396a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "74a3b15453302dde78ef903629ad9302b04531e0dacedd8d3823e5b3eeb5b04f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-10-09T15:04:45Z",
    "title_canon_sha256": "a5e0355469e6a15d8a43b64c7b23c3f9f2e4f513a1705daadb71fca9cf186f61"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0310258",
    "kind": "arxiv",
    "version": 1
  }
}