Pith Number

pith:PE4JKV3O

pith:2026:PE4JKV3OKJKAILKACPU5NPW4NL

not attested not anchored not stored refs pending

Existence of solutions for a model of the Earth's magnetic field

Franziska Weber, Jacob Bedrossian, Tom Schang

arxiv:2605.21786 v1 · 2026-05-20 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PE4JKV3OKJKAILKACPU5NPW4NL}

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	2026-05-22T01:03:32.409528Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

793895576e5254042d4013e9d6bedc6ad4ba3a5ed9fec090eafd49708528c7cd

Aliases

arxiv: 2605.21786 · arxiv_version: 2605.21786v1 · doi: 10.48550/arxiv.2605.21786 · pith_short_12: PE4JKV3OKJKA · pith_short_16: PE4JKV3OKJKAILKA · pith_short_8: PE4JKV3O

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/PE4JKV3OKJKAILKACPU5NPW4NL \
  | 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: 793895576e5254042d4013e9d6bedc6ad4ba3a5ed9fec090eafd49708528c7cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0454bf1ac14e1c642130f4e04d1e580c3f6550005b82c2cfda28eaccdadbbf0f",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2026-05-20T22:25:43Z",
    "title_canon_sha256": "ba59c0765c6645ce924db7d95e9feabed665e9a8871adc2865f533c22cffef20"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.21786",
    "kind": "arxiv",
    "version": 1
  }
}