Pith Number

pith:32GSMXKM

pith:2011:32GSMXKMDF4UHBOLDVNUJH6OUG

not attested not anchored not stored refs pending

Interface dynamics of the porous medium equation with a bistable reaction term

Danielle Hilhorst (LM-Orsay), Matthieu Alfaro (I3M)

arxiv:1107.3543 v1 · 2011-07-18 · 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{32GSMXKMDF4UHBOLDVNUJH6OUG}

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	2026-05-18T04:18:02.880744Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

de8d265d4c19794385cb1d5b449fcea19bc3c11db2d979562372459bdfcfc074

Aliases

arxiv: 1107.3543 · arxiv_version: 1107.3543v1 · doi: 10.48550/arxiv.1107.3543 · pith_short_12: 32GSMXKMDF4U · pith_short_16: 32GSMXKMDF4UHBOL · pith_short_8: 32GSMXKM

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/32GSMXKMDF4UHBOLDVNUJH6OUG \
  | 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: de8d265d4c19794385cb1d5b449fcea19bc3c11db2d979562372459bdfcfc074

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e2739dbd4b5d63883f5e6060b7b72a5b53932e4772b6fe438be3d3946ee5ab3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2011-07-18T19:46:26Z",
    "title_canon_sha256": "e6b99d66737c03edc4d9927c76e25edd8e1f4916a67805b8b4717b3c4e295fd2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.3543",
    "kind": "arxiv",
    "version": 1
  }
}