Pith Number

pith:TLXIOK6B

pith:2019:TLXIOK6BM7LDGGFV64JZ6HHCLI

not attested not anchored not stored refs pending

Energy-corrected FEM and explicit time-stepping for parabolic problems

Barbara Wohlmuth, Piotr Swierczynski

arxiv:1903.06809 v1 · 2019-03-15 · 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{TLXIOK6BM7LDGGFV64JZ6HHCLI}

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	2026-05-17T23:51:08.973393Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9aee872bc167d63318b5f7139f1ce25a1123aa2df8b4dddf01fae15342fedd69

Aliases

arxiv: 1903.06809 · arxiv_version: 1903.06809v1 · doi: 10.48550/arxiv.1903.06809 · pith_short_12: TLXIOK6BM7LD · pith_short_16: TLXIOK6BM7LDGGFV · pith_short_8: TLXIOK6B

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/TLXIOK6BM7LDGGFV64JZ6HHCLI \
  | 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: 9aee872bc167d63318b5f7139f1ce25a1123aa2df8b4dddf01fae15342fedd69

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b5c6e8b58daf8b7c0a9a6a013e1943f52037e775570c08e813c40703f17942e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-03-15T21:25:22Z",
    "title_canon_sha256": "aef75b4dbfbf634a9c86f3ccb41e07d05de16fc53540fcc2333f65d3122f3acd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.06809",
    "kind": "arxiv",
    "version": 1
  }
}