Pith Number

pith:7R77WDIQ

pith:2019:7R77WDIQWOJT3QEODBXQX6WODQ

not attested not anchored not stored refs pending

Order conditions for exponential integrators

Harald Hofst\"atter

arxiv:1902.11256 v1 · 2019-02-28 · 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{7R77WDIQWOJT3QEODBXQX6WODQ}

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	2026-05-17T23:52:25.089417Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc7ffb0d10b3933dc08e186f0bface1c076a3b202091d2d38c6100cd40525897

Aliases

arxiv: 1902.11256 · arxiv_version: 1902.11256v1 · doi: 10.48550/arxiv.1902.11256 · pith_short_12: 7R77WDIQWOJT · pith_short_16: 7R77WDIQWOJT3QEO · pith_short_8: 7R77WDIQ

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/7R77WDIQWOJT3QEODBXQX6WODQ \
  | 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: fc7ffb0d10b3933dc08e186f0bface1c076a3b202091d2d38c6100cd40525897

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13592b4791b013f77724086da8c7df11fd2831c975310e75e06198beebeb60e9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-02-28T18:03:03Z",
    "title_canon_sha256": "3cef67e1042e0267f93669aba1f3f06a3d1ffa906bdd3ddd99f44a3778df2899"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.11256",
    "kind": "arxiv",
    "version": 1
  }
}