Pith Number

pith:LABJRDTZ

pith:2012:LABJRDTZFEQQ4UTEX5EIZ5ZMT3

not attested not anchored not stored refs pending

Two-Grid Methods for Semilinear Interface Problems

Michael Holst, Ryan Szypowski, Yunrong Zhu

arxiv:1203.0339 v1 · 2012-03-01 · math.NA · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LABJRDTZFEQQ4UTEX5EIZ5ZMT3}

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	2026-05-18T04:01:01.145738Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5802988e7929210e5264bf488cf72c9eee1d277a2aa5e48a8792f36bc1633ddd

Aliases

arxiv: 1203.0339 · arxiv_version: 1203.0339v1 · doi: 10.48550/arxiv.1203.0339 · pith_short_12: LABJRDTZFEQQ · pith_short_16: LABJRDTZFEQQ4UTE · pith_short_8: LABJRDTZ

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/LABJRDTZFEQQ4UTEX5EIZ5ZMT3 \
  | 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: 5802988e7929210e5264bf488cf72c9eee1d277a2aa5e48a8792f36bc1633ddd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "949b916da0049346e8faa546785a4a59e1c8e4e635c8001ddd6963bdf0e20c0e",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2012-03-01T23:43:48Z",
    "title_canon_sha256": "d69e19a31b152a6b50254ee89f4c6a472d815f565b4c5ff39afefc05c6301d1a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.0339",
    "kind": "arxiv",
    "version": 1
  }
}