Pith Number

pith:VSVFTCA3

pith:2017:VSVFTCA3XH74JI5JC4PRYUIJ2T

not attested not anchored not stored refs pending

Solving variational problems and partial differential equations that map between manifolds via the closest point method

Nathan D. King, Steven J. Ruuth

arxiv:1710.09655 v1 · 2017-10-26 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VSVFTCA3XH74JI5JC4PRYUIJ2T}

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	2026-05-18T00:31:56.721143Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

acaa59881bb9ffc4a3a9171f1c5109d4fb207afc1cfe9acb2883adc167318c3e

Aliases

arxiv: 1710.09655 · arxiv_version: 1710.09655v1 · doi: 10.48550/arxiv.1710.09655 · pith_short_12: VSVFTCA3XH74 · pith_short_16: VSVFTCA3XH74JI5J · pith_short_8: VSVFTCA3

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/VSVFTCA3XH74JI5JC4PRYUIJ2T \
  | 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: acaa59881bb9ffc4a3a9171f1c5109d4fb207afc1cfe9acb2883adc167318c3e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c035eee91eef42bbf2035e0d37f27482abaaa0dda5deab7d5db3b3131134e8be",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-10-26T11:55:54Z",
    "title_canon_sha256": "12db22ab47669ec46aa2f65609e00da69c0ba90985f0e766e705acd3b7d27f5a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.09655",
    "kind": "arxiv",
    "version": 1
  }
}