Pith Number

pith:RXUGFOEZ

pith:2019:RXUGFOEZBSXDJ2MAXFATG2LSVF

not attested not anchored not stored refs pending

Space-Time Finite Element Methods for Parabolic Evolution Problems with Non-smooth Solutions

Andreas Schafelner, Ulrich Langer

arxiv:1903.02350 v1 · 2019-03-06 · 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{RXUGFOEZBSXDJ2MAXFATG2LSVF}

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	2026-05-17T23:51:55.538069Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8de862b8990cae34e980b941336972a96cb00e9c240d7903b88ba16867cdad54

Aliases

arxiv: 1903.02350 · arxiv_version: 1903.02350v1 · doi: 10.48550/arxiv.1903.02350 · pith_short_12: RXUGFOEZBSXD · pith_short_16: RXUGFOEZBSXDJ2MA · pith_short_8: RXUGFOEZ

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/RXUGFOEZBSXDJ2MAXFATG2LSVF \
  | 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: 8de862b8990cae34e980b941336972a96cb00e9c240d7903b88ba16867cdad54

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ae45293d9ca6f0a1026fde1baee32d3d13a4450c0e064e98022235a34e5bf3b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-03-06T13:09:08Z",
    "title_canon_sha256": "f92cfa5996e96a88ae6374aeb7b956e838e17401fede1fe164ab3fe1b267a3c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.02350",
    "kind": "arxiv",
    "version": 1
  }
}