Pith Number

pith:VLO7GX7L

pith:2022:VLO7GX7LAGQBFVG5U6MDYGI4X2

not attested not anchored not stored refs pending

Lagrangian solutions to the Porous Media Equation and Reaction Diffusion Systems

Matt Jacobs

arxiv:2208.01792 v2 · 2022-08-03 · 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{VLO7GX7LAGQBFVG5U6MDYGI4X2}

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.

Cited by

1 paper in Pith

Nonlocal approximation of an anisotropic cross-diffusion system

Receipt and verification

First computed	2026-07-05T05:52:21.646361Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aaddf35feb01a012d4dda7983c191cbeb24a6f83b0a859bf0c48cef8108ccd13

Aliases

arxiv: 2208.01792 · arxiv_version: 2208.01792v2 · doi: 10.48550/arxiv.2208.01792 · pith_short_12: VLO7GX7LAGQB · pith_short_16: VLO7GX7LAGQBFVG5 · pith_short_8: VLO7GX7L

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/VLO7GX7LAGQBFVG5U6MDYGI4X2 \
  | 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: aaddf35feb01a012d4dda7983c191cbeb24a6f83b0a859bf0c48cef8108ccd13

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75bcb69037bd3e0a4feb5f4554e3c0a73095c7cd8e7112e826fbd09d68155d41",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2022-08-03T00:14:33Z",
    "title_canon_sha256": "bcdf26951e8890d9609a9e59a1e79500429f91273ff431868e9204791cd6d512"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2208.01792",
    "kind": "arxiv",
    "version": 2
  }
}