Pith Number

pith:AJRV64EW

pith:2019:AJRV64EWBVZPCNSWH23T7MCLRT

not attested not anchored not stored refs pending

Two exponential-type integrators for the "good" Boussinesq equation

Alexander Ostermann, Chunmei Su

arxiv:1902.07478 v1 · 2019-02-20 · 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{AJRV64EWBVZPCNSWH23T7MCLRT}

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	2026-05-17T23:53:07.755027Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

02635f70960d72f136563eb73fb04b8cc7a7614111ef29149579701989f35f99

Aliases

arxiv: 1902.07478 · arxiv_version: 1902.07478v1 · doi: 10.48550/arxiv.1902.07478 · pith_short_12: AJRV64EWBVZP · pith_short_16: AJRV64EWBVZPCNSW · pith_short_8: AJRV64EW

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/AJRV64EWBVZPCNSWH23T7MCLRT \
  | 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: 02635f70960d72f136563eb73fb04b8cc7a7614111ef29149579701989f35f99

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "df9912386620cf23112f400a3dbb26c5fd264da2ff4852b3cd703c079f0a4c49",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-02-20T09:55:25Z",
    "title_canon_sha256": "af1a4146aee64791a910ae896fad24043a4cb899f4e5cae024ae7f401da12539"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.07478",
    "kind": "arxiv",
    "version": 1
  }
}