Pith Number

pith:75D7QZQI

pith:2013:75D7QZQINWN4PZOQM5IQCLDUHM

not attested not anchored not stored refs pending

Pattern formation in a flux limited reaction-diffusion of porous media type

J. Calvo, J. Campos, J. Soler, O. S\'anchez, V. Caselles

arxiv:1309.6789 v1 · 2013-09-26 · 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{75D7QZQINWN4PZOQM5IQCLDUHM}

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	2026-05-18T00:19:43.144374Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff47f866086d9bc7e5d06751012c743b15241f67602ef581faa6cd799945bd71

Aliases

arxiv: 1309.6789 · arxiv_version: 1309.6789v1 · doi: 10.48550/arxiv.1309.6789 · pith_short_12: 75D7QZQINWN4 · pith_short_16: 75D7QZQINWN4PZOQ · pith_short_8: 75D7QZQI

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/75D7QZQINWN4PZOQM5IQCLDUHM \
  | 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: ff47f866086d9bc7e5d06751012c743b15241f67602ef581faa6cd799945bd71

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f4e000df63f3fd3b7b80b3a3af22bffe9c84aef628b8756692395472fac536e2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2013-09-26T10:49:16Z",
    "title_canon_sha256": "b2d9473a80080310b605b0a550caaa134982caf287c3f6e292423b4558d26a93"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.6789",
    "kind": "arxiv",
    "version": 1
  }
}