Pith Number

pith:6IMUCPRN

pith:2019:6IMUCPRNITWVWRGRO5ROU66LBX

not attested not anchored not stored refs pending

Exponential integrators for semi-linear parabolic problems with linear constraints

Christoph Zimmer, Robert Altmann

arxiv:1907.02828 v1 · 2019-07-05 · math.NA · cs.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{6IMUCPRNITWVWRGRO5ROU66LBX}

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	2026-05-17T23:41:22.962735Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f219413e2d44ed5b44d17762ea7bcb0dff8672a1cd7caff7d80962c760de68aa

Aliases

arxiv: 1907.02828 · arxiv_version: 1907.02828v1 · doi: 10.48550/arxiv.1907.02828 · pith_short_12: 6IMUCPRNITWV · pith_short_16: 6IMUCPRNITWVWRGR · pith_short_8: 6IMUCPRN

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/6IMUCPRNITWVWRGRO5ROU66LBX \
  | 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: f219413e2d44ed5b44d17762ea7bcb0dff8672a1cd7caff7d80962c760de68aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c76aa03ef6779eee2ca19e7af7d830b49d323464273248aa9a2392afca33ff10",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-07-05T13:42:42Z",
    "title_canon_sha256": "2170ec6855f5ba9728e56424cb1fb3500b74446e8303f1a4138c873961fd4ddf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.02828",
    "kind": "arxiv",
    "version": 1
  }
}