Pith Number

pith:ZMNNXG6R

pith:2018:ZMNNXG6RC6Y63HDRC4L2YHBIR4

not attested not anchored not stored refs pending

Spectrally accurate space-time solution of Hamiltonian PDEs

Felice Iavernaro, Juan I. Montijano, Luigi Brugnano, Luis R\`andez

arxiv:1807.08421 v1 · 2018-07-23 · 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{ZMNNXG6RC6Y63HDRC4L2YHBIR4}

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	2026-05-18T00:08:20.425195Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cb1adb9bd117b1ed9c711717ac1c288f1dfbe4274663ba0b2ad0c9f5b8205bf8

Aliases

arxiv: 1807.08421 · arxiv_version: 1807.08421v1 · doi: 10.48550/arxiv.1807.08421 · pith_short_12: ZMNNXG6RC6Y6 · pith_short_16: ZMNNXG6RC6Y63HDR · pith_short_8: ZMNNXG6R

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/ZMNNXG6RC6Y63HDRC4L2YHBIR4 \
  | 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: cb1adb9bd117b1ed9c711717ac1c288f1dfbe4274663ba0b2ad0c9f5b8205bf8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a3bb52d493a3457b7bd8855bf67b961886343b5678ba2e83a76d87a3e39c44e5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-07-23T03:50:15Z",
    "title_canon_sha256": "be690b39e2eeed191a0fc8cb6f64906ac36067af7186b0e1d4eb4202fbaace9c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.08421",
    "kind": "arxiv",
    "version": 1
  }
}