Pith Number

pith:4WLS7AKZ

pith:2009:4WLS7AKZB5637JDOQFPUBVMDOU

not attested not anchored not stored refs pending

Remarks on the method of modulus of continuity and the modified dissipative porous media equation

Kazuo Yamazaki

arxiv:0908.1257 v4 · 2009-08-09 · 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{4WLS7AKZB5637JDOQFPUBVMDOU}

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	2026-05-18T04:31:52.484853Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5972f81590f7dbfa46e815f40d5837533b4cb1e603706f0375215866edd81aa

Aliases

arxiv: 0908.1257 · arxiv_version: 0908.1257v4 · doi: 10.48550/arxiv.0908.1257 · pith_short_12: 4WLS7AKZB563 · pith_short_16: 4WLS7AKZB5637JDO · pith_short_8: 4WLS7AKZ

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/4WLS7AKZB5637JDOQFPUBVMDOU \
  | 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: e5972f81590f7dbfa46e815f40d5837533b4cb1e603706f0375215866edd81aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f07d78116a054538c411ca7935cc3ef992e9b4ff531a3268116bd33b6a82cb53",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2009-08-09T22:14:41Z",
    "title_canon_sha256": "0cfeb6a88145d9a9d224607a0ccc0ce2041c60f09ecfa1d366919aa7c6ad8e6a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.1257",
    "kind": "arxiv",
    "version": 4
  }
}