Pith Number

pith:IYFBCCJB

pith:2025:IYFBCCJBPUJXJFGTQUUTCSNPE6

not attested not anchored not stored refs pending

Shock with Confidence: Formal Proofs of Correctness for Hyperbolic Partial Differential Equation Solvers

Ammar Hakim, Jonathan Gorard

arxiv:2503.13877 v1 · 2025-03-18 · cs.LO · cs.NA · math.NA · physics.comp-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IYFBCCJBPUJXJFGTQUUTCSNPE6}

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	2026-07-05T10:33:20.289653Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

460a1109217d137494d385293149af27b53331d3479b32d15312e889bb5d8f70

Aliases

arxiv: 2503.13877 · arxiv_version: 2503.13877v1 · doi: 10.48550/arxiv.2503.13877 · pith_short_12: IYFBCCJBPUJX · pith_short_16: IYFBCCJBPUJXJFGT · pith_short_8: IYFBCCJB

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/IYFBCCJBPUJXJFGTQUUTCSNPE6 \
  | 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: 460a1109217d137494d385293149af27b53331d3479b32d15312e889bb5d8f70

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "407895b58010ff5f6b698cff0df2abdb98429a9cef48473118361da594de5eb7",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA",
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2025-03-18T04:08:07Z",
    "title_canon_sha256": "c5371074524a7781f8753e266c2be748933bee825e0b8e9e6e0a056daf9fe7b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2503.13877",
    "kind": "arxiv",
    "version": 1
  }
}