Pith Number

pith:3LCW7DHQ

pith:2021:3LCW7DHQJO3B5KNVHENXZKA7PV

not attested not anchored not stored refs pending

Magnetic Field Design in a Cylindrical High-Permeability Shield: The Combination of Simple Building Blocks and a Genetic Algorithm

A. Davis, J. Leggett, M. J. Brookes, M. Packer, N. Holmes, N. L. Hardwicke, P. Glover, P. J. Hobson, R. Bowtell, T. M. Fromhold

arxiv:2107.03170 v5 · 2021-07-07 · physics.app-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{3LCW7DHQJO3B5KNVHENXZKA7PV}

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	2026-07-05T04:01:56.299262Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dac56f8cf04bb61ea9b5391b7ca81f7d400fd78854f8909a47edd71d6864bdd9

Aliases

arxiv: 2107.03170 · arxiv_version: 2107.03170v5 · doi: 10.48550/arxiv.2107.03170 · pith_short_12: 3LCW7DHQJO3B · pith_short_16: 3LCW7DHQJO3B5KNV · pith_short_8: 3LCW7DHQ

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/3LCW7DHQJO3B5KNVHENXZKA7PV \
  | 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: dac56f8cf04bb61ea9b5391b7ca81f7d400fd78854f8909a47edd71d6864bdd9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3066925e01be201d185687ff6dac04e4d8e99a64f4273d5a3d365555629058f9",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2021-07-07T11:58:58Z",
    "title_canon_sha256": "aa1cc727bffd410b872effe3dad0965cb0eabeb98af949ec71caeb385fe3b55c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.03170",
    "kind": "arxiv",
    "version": 5
  }
}