Pith Number

pith:3U7JX42M

pith:2003:3U7JX42MWDOGGIFKBYSPXXBTAK

not attested not anchored not stored refs pending

Decay of Magnetic Fields in the Early Universe

A. Brandenburg (NORDITA), Mark Hindmarsh (Sussex), M. Christensson (NORDITA)

arxiv:astro-ph/0302320 v1 · 2003-02-17 · astro-ph · hep-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{3U7JX42MWDOGGIFKBYSPXXBTAK}

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	2026-05-18T00:37:17.648740Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd3e9bf34cb0dc6320aa0e24fbdc3302a29087e9530272aea0e61937fcd5363e

Aliases

arxiv: astro-ph/0302320 · arxiv_version: astro-ph/0302320v1 · doi: 10.48550/arxiv.astro-ph/0302320 · pith_short_12: 3U7JX42MWDOG · pith_short_16: 3U7JX42MWDOGGIFK · pith_short_8: 3U7JX42M

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/3U7JX42MWDOGGIFKBYSPXXBTAK \
  | 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: dd3e9bf34cb0dc6320aa0e24fbdc3302a29087e9530272aea0e61937fcd5363e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b1cf3183692fb6a6f6cf8f41b252382567f01458473498a5bc7ac7f9f58a8da",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-02-17T09:27:05Z",
    "title_canon_sha256": "4d6028e30969fe1026ad16d2a466cecbd03f1ff8ddefdfb6f9601ee1f9d0d70a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0302320",
    "kind": "arxiv",
    "version": 1
  }
}