Pith Number

pith:NSECNCZA

pith:2015:NSECNCZAMUCAJKUHX3RBONEMW7

not attested not anchored not stored refs pending

Lie symmetry properties of nonlinear reaction-diffusion equations with gradient-dependent diffusivity

J.R. King, R. Cherniha, S. Kovalenko

arxiv:1507.01893 v1 · 2015-07-07 · math-ph · math.MP · nlin.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NSECNCZAMUCAJKUHX3RBONEMW7}

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	2026-05-18T01:18:44.301309Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c88268b20650404aa87bee217348cb7f34075ba1025644f8e0a5f659c6bc6ad

Aliases

arxiv: 1507.01893 · arxiv_version: 1507.01893v1 · doi: 10.48550/arxiv.1507.01893 · pith_short_12: NSECNCZAMUCA · pith_short_16: NSECNCZAMUCAJKUH · pith_short_8: NSECNCZA

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/NSECNCZAMUCAJKUHX3RBONEMW7 \
  | 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: 6c88268b20650404aa87bee217348cb7f34075ba1025644f8e0a5f659c6bc6ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "53dc309c1d5528cde204b35d995b7bd041d2242e4b8b827f443675b562d8cb2f",
    "cross_cats_sorted": [
      "math.MP",
      "nlin.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2015-07-07T17:36:53Z",
    "title_canon_sha256": "56644dc61619421e860ceaf3e96cd197b428dd936c828512b841a2b38d9c9ced"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.01893",
    "kind": "arxiv",
    "version": 1
  }
}