Pith Number

pith:7FT33YMN

pith:2015:7FT33YMNL7OGRXB6HZUZBONULD

not attested not anchored not stored refs pending

Mimetic Finite Difference methods for Hamiltonian wave equations in 2D

Giuseppe Vacca, Lourenco Beirao da Veiga, Luciano Lopez

arxiv:1505.01017 v2 · 2015-05-05 · 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{7FT33YMNL7OGRXB6HZUZBONULD}

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	2026-05-18T01:09:59.804404Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f967bde18d5fdc68dc3e3e6990b9b458ea0cc3d6c060e7767a864f613724f030

Aliases

arxiv: 1505.01017 · arxiv_version: 1505.01017v2 · doi: 10.48550/arxiv.1505.01017 · pith_short_12: 7FT33YMNL7OG · pith_short_16: 7FT33YMNL7OGRXB6 · pith_short_8: 7FT33YMN

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/7FT33YMNL7OGRXB6HZUZBONULD \
  | 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: f967bde18d5fdc68dc3e3e6990b9b458ea0cc3d6c060e7767a864f613724f030

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f752322120e9d733b592da6eccaac26bd242e0be15be129a7ccde3796d957dac",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-05-05T14:29:15Z",
    "title_canon_sha256": "ad67a11f9121c4c85ee0ac1d6b149db86f91b1a6f8947f4a67ab8a674fb58d6e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.01017",
    "kind": "arxiv",
    "version": 2
  }
}