Pith Number

pith:72ACSUDZ

pith:2007:72ACSUDZ32KY5CYZMIO44WLMR3

not attested not anchored not stored refs pending

Magnetic Flux Diffusion and Expulsion with Thin Conducting Sheets

John Belcher, Yao Liu

arxiv:0712.0182 v1 · 2007-12-02 · physics.class-ph · physics.ed-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{72ACSUDZ32KY5CYZMIO44WLMR3}

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	2026-07-04T15:06:00.749270Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe80295079de958e8b19621dce596c8ece7c003c6a1419e144b69da71a2f7afa

Aliases

arxiv: 0712.0182 · arxiv_version: 0712.0182v1 · doi: 10.48550/arxiv.0712.0182 · pith_short_12: 72ACSUDZ32KY · pith_short_16: 72ACSUDZ32KY5CYZ · pith_short_8: 72ACSUDZ

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/72ACSUDZ32KY5CYZMIO44WLMR3 \
  | 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: fe80295079de958e8b19621dce596c8ece7c003c6a1419e144b69da71a2f7afa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0a1e674246192d8c9781378ddf240a2f58ea66edf20c6995f17ca794f25d1b29",
    "cross_cats_sorted": [
      "physics.ed-ph"
    ],
    "license": "",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2007-12-02T20:34:14Z",
    "title_canon_sha256": "e9beb7d04d49ef61d52869fd979d1657536cb881ab01e4fe37b6789b00fd0976"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0712.0182",
    "kind": "arxiv",
    "version": 1
  }
}