Pith Number

pith:MFPHEE64

pith:2018:MFPHEE64MPYFU4QWFYCJEMWMKR

not attested not anchored not stored refs pending

Direct construction of optimized stellarator shapes. I. Theory in cylindrical coordinates

Matt Landreman, Wrick Sengupta

arxiv:1809.10233 v2 · 2018-09-26 · 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{MFPHEE64MPYFU4QWFYCJEMWMKR}

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	2026-05-17T23:56:17.736380Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

615e7213dc63f05a72162e049232cc546bcb2cfb1911cded7ddd0689019624fb

Aliases

arxiv: 1809.10233 · arxiv_version: 1809.10233v2 · doi: 10.48550/arxiv.1809.10233 · pith_short_12: MFPHEE64MPYF · pith_short_16: MFPHEE64MPYFU4QW · pith_short_8: MFPHEE64

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/MFPHEE64MPYFU4QWFYCJEMWMKR \
  | 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: 615e7213dc63f05a72162e049232cc546bcb2cfb1911cded7ddd0689019624fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "358e3c082512a48ca36582b218eba0a0c5bd0baad97ade1d56b6e56e76ce439c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.plasm-ph",
    "submitted_at": "2018-09-26T21:13:01Z",
    "title_canon_sha256": "2b659de2ee8c0fe6e3d37ba462a577b8f557415974c0926cf3e883b2198afabf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.10233",
    "kind": "arxiv",
    "version": 2
  }
}