Pith Number

pith:NC7QYOLG

pith:2013:NC7QYOLGOV5ZFPZJHOEEPVKVNU

not attested not anchored not stored refs pending

Solutions of first-order quasilinear systems expressed in Riemann invariants

Alfred Michel Grundland, Vincent Lamothe

arxiv:1310.6777 v2 · 2013-10-24 · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NC7QYOLGOV5ZFPZJHOEEPVKVNU}

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	2026-05-18T02:41:24.892793Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68bf0c3966757b92bf293b8847d5556d0f5c3c5ce149b321a1cf83069c308146

Aliases

arxiv: 1310.6777 · arxiv_version: 1310.6777v2 · doi: 10.48550/arxiv.1310.6777 · pith_short_12: NC7QYOLGOV5Z · pith_short_16: NC7QYOLGOV5ZFPZJ · pith_short_8: NC7QYOLG

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/NC7QYOLGOV5ZFPZJHOEEPVKVNU \
  | 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: 68bf0c3966757b92bf293b8847d5556d0f5c3c5ce149b321a1cf83069c308146

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "def80c075634f2fa609992c356c18b3046a6c8f779f1ebbea0f963b3d3f7e2bf",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2013-10-24T21:25:00Z",
    "title_canon_sha256": "4ede09c8d0acaa1295ef9f20d7b62b1da0199aecf163fca3f7975ae10ada24b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.6777",
    "kind": "arxiv",
    "version": 2
  }
}