Pith Number

pith:C75VQRAC

pith:2018:C75VQRACMNCHJKVLICYQDPGUS5

not attested not anchored not stored refs pending

Adjoint approach to calculating shape gradients for 3D magnetic confinement equilibria

Elizabeth J. Paul, Jr., Matt Landreman, Thomas Antonsen

arxiv:1812.06154 v3 · 2018-12-14 · physics.plasm-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{C75VQRACMNCHJKVLICYQDPGUS5}

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	2026-05-17T23:49:02.613361Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

17fb584402634474aaab40b101bcd49762f2fcbf819a7b5a46daa184729f77df

Aliases

arxiv: 1812.06154 · arxiv_version: 1812.06154v3 · doi: 10.48550/arxiv.1812.06154 · pith_short_12: C75VQRACMNCH · pith_short_16: C75VQRACMNCHJKVL · pith_short_8: C75VQRAC

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/C75VQRACMNCHJKVLICYQDPGUS5 \
  | 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: 17fb584402634474aaab40b101bcd49762f2fcbf819a7b5a46daa184729f77df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aca8d9edbb1a0de49ced48f467c82f7df0329388477588905f2fa858f9b48990",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.plasm-ph",
    "submitted_at": "2018-12-14T20:29:49Z",
    "title_canon_sha256": "4d029a506cc845546865144793096c29b43db1b2824f16dfe9b9585e37c5a2e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.06154",
    "kind": "arxiv",
    "version": 3
  }
}