Pith Number

pith:PX7WZZ5X

pith:2014:PX7WZZ5XKSBLGXUEPXCC3DVKRL

not attested not anchored not stored refs pending

The Nitsche XFEM-DG space-time method and its implementation in three space dimensions

Christoph Lehrenfeld

arxiv:1408.2941 v1 · 2014-08-13 · math.NA · cs.CE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PX7WZZ5XKSBLGXUEPXCC3DVKRL}

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	2026-05-18T01:35:51.991102Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7dff6ce7b75482b35e847dc42d8eaa8ad12a45a044f4d7c7768db8ec1f475b69

Aliases

arxiv: 1408.2941 · arxiv_version: 1408.2941v1 · doi: 10.48550/arxiv.1408.2941 · pith_short_12: PX7WZZ5XKSBL · pith_short_16: PX7WZZ5XKSBLGXUE · pith_short_8: PX7WZZ5X

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/PX7WZZ5XKSBLGXUEPXCC3DVKRL \
  | 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: 7dff6ce7b75482b35e847dc42d8eaa8ad12a45a044f4d7c7768db8ec1f475b69

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "015a6923542060ccb40f79ee3624527fc3252c5947ca56e013dfe50a7a6975ad",
    "cross_cats_sorted": [
      "cs.CE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-08-13T08:37:10Z",
    "title_canon_sha256": "a6d171018d0e77c87a517fba4ee5e9840dab7b20ab911e948d1ac4c9008953ec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.2941",
    "kind": "arxiv",
    "version": 1
  }
}