Pith Number

pith:D3H4VCUZ

pith:2011:D3H4VCUZEZGXIUOZI6T75TW6N2

not attested not anchored not stored refs pending

Closed-loop control of a reaction-diffusion system

Grzegorz Dudziuk, Marek Niezg\'odka

arxiv:1109.4530 v1 · 2011-09-21 · math.OC · cs.SY

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D3H4VCUZEZGXIUOZI6T75TW6N2}

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	2026-05-18T04:12:34.522405Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ecfca8a99264d7451d947a7fecede6eb3d9597eb1d9cb4edbbabc1ed76149ec

Aliases

arxiv: 1109.4530 · arxiv_version: 1109.4530v1 · doi: 10.48550/arxiv.1109.4530 · pith_short_12: D3H4VCUZEZGX · pith_short_16: D3H4VCUZEZGXIUOZ · pith_short_8: D3H4VCUZ

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/D3H4VCUZEZGXIUOZI6T75TW6N2 \
  | 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: 1ecfca8a99264d7451d947a7fecede6eb3d9597eb1d9cb4edbbabc1ed76149ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ab25ad5e6a3848856e785bfe0448430a9730586a52e5dd5f7f14c7e9b54ada74",
    "cross_cats_sorted": [
      "cs.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2011-09-21T13:54:28Z",
    "title_canon_sha256": "cd5e1cff5f2247252124f87376ae219704107ce6b76ed32917a0ff489a594e52"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.4530",
    "kind": "arxiv",
    "version": 1
  }
}