Pith Number

pith:2SYEJLMX

pith:2013:2SYEJLMXDSMDAFIMVFTCORZU7R

not attested not anchored not stored refs pending

The Closest Point Method and multigrid solvers for elliptic equations on surfaces

Colin B. Macdonald, Yujia Chen

arxiv:1307.4354 v2 · 2013-07-16 · 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{2SYEJLMXDSMDAFIMVFTCORZU7R}

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	2026-05-18T02:39:24.133212Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4b044ad971c9830150ca966274734fc5dff3d432de3d5abecc108387cd97eab

Aliases

arxiv: 1307.4354 · arxiv_version: 1307.4354v2 · doi: 10.48550/arxiv.1307.4354 · pith_short_12: 2SYEJLMXDSMD · pith_short_16: 2SYEJLMXDSMDAFIM · pith_short_8: 2SYEJLMX

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/2SYEJLMXDSMDAFIMVFTCORZU7R \
  | 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: d4b044ad971c9830150ca966274734fc5dff3d432de3d5abecc108387cd97eab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b3451b18a18d16cca3f62b409af841e3b153d46e4f995254061518c03f88a49e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2013-07-16T17:42:48Z",
    "title_canon_sha256": "223d525e65f1461b9a9b5215e8ca1d9c326f986c21ef397c756118831b49493a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.4354",
    "kind": "arxiv",
    "version": 2
  }
}