Pith Number

pith:SLY7OHQI

pith:2026:SLY7OHQIF2GDRLFNH5K7R2VCJD

not attested not anchored not stored refs pending

The generalized porous medium equation on graphs: well-posedness, extinction, and mass conservation

Alberto G. Setti, Bobo Hua, Davide Bianchi, Rados{\l}aw K. Wojciechowski

arxiv:2607.23091 v1 · 2026-07-25 · 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{SLY7OHQIF2GDRLFNH5K7R2VCJD}

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	2026-07-28T01:22:06.351293Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

92f1f71e082e8c38acad3f55f8eaa248d4cf5ea3de91de05818e7751d8bf35d6

Aliases

arxiv: 2607.23091 · arxiv_version: 2607.23091v1 · doi: 10.48550/arxiv.2607.23091 · pith_short_12: SLY7OHQIF2GD · pith_short_16: SLY7OHQIF2GDRLFN · pith_short_8: SLY7OHQI

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/SLY7OHQIF2GDRLFNH5K7R2VCJD \
  | 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: 92f1f71e082e8c38acad3f55f8eaa248d4cf5ea3de91de05818e7751d8bf35d6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "63849db897e04d818587419a0a5114331e970275b2e8e5743bc24f9573cfa9fd",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2026-07-25T08:04:03Z",
    "title_canon_sha256": "315cc7dd4463ee75da17e0b09da73134aa8156d1b24e67800ed76b807720509a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.23091",
    "kind": "arxiv",
    "version": 1
  }
}