Pith Number

pith:4ANRDMW6

pith:2014:4ANRDMW6BIIIW4BLEX6VGSNPYA

not attested not anchored not stored refs pending

A Fourier Pseudospectral Method for the "Good" Boussinesq Equation with Second Order Temporal Accuracy

Cheng Wang, Kelong Cheng, Sigal Gottlieb, Wenqiang Feng

arxiv:1401.6327 v1 · 2014-01-24 · 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{4ANRDMW6BIIIW4BLEX6VGSNPYA}

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	2026-05-18T03:01:12.458472Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e01b11b2de0a108b702b25fd5349afc013a362d8df64dcb6cdbb02c06ad077f3

Aliases

arxiv: 1401.6327 · arxiv_version: 1401.6327v1 · doi: 10.48550/arxiv.1401.6327 · pith_short_12: 4ANRDMW6BIII · pith_short_16: 4ANRDMW6BIIIW4BL · pith_short_8: 4ANRDMW6

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/4ANRDMW6BIIIW4BLEX6VGSNPYA \
  | 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: e01b11b2de0a108b702b25fd5349afc013a362d8df64dcb6cdbb02c06ad077f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a8ad0420a8940d0cefe502f089dfb2e956d3bc6927b6227c81ea1437c414c6c6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-01-24T12:43:59Z",
    "title_canon_sha256": "453a049010b92930f23410eccda954533a6690e539e27427b5af710f82b6a75a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.6327",
    "kind": "arxiv",
    "version": 1
  }
}