Pith Number

pith:XNDQS76F

pith:2012:XNDQS76FH4KSKB74LXBNNZ2EMI

not attested not anchored not stored refs pending

On a nonlocal hyperbolic conservation law arising from a gradient constraint problem

Paulo Amorim

arxiv:1202.1236 v1 · 2012-02-06 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XNDQS76FH4KSKB74LXBNNZ2EMI}

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	2026-05-18T04:02:54.795204Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb47097fc53f152507fc5dc2d6e744623327b9709c188fd4823625ea2546c240

Aliases

arxiv: 1202.1236 · arxiv_version: 1202.1236v1 · doi: 10.48550/arxiv.1202.1236 · pith_short_12: XNDQS76FH4KS · pith_short_16: XNDQS76FH4KSKB74 · pith_short_8: XNDQS76F

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/XNDQS76FH4KSKB74LXBNNZ2EMI \
  | 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: bb47097fc53f152507fc5dc2d6e744623327b9709c188fd4823625ea2546c240

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a0d53768febb74fcb341678b288374b5db02963e8f30444c6355e9169f6f83d0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2012-02-06T18:38:18Z",
    "title_canon_sha256": "e5fb9ecad1f46d1989a36baf16086de2209659030d5a7ae3f3131434221a6f9d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.1236",
    "kind": "arxiv",
    "version": 1
  }
}