Pith Number

pith:QLJQC6S4

pith:2019:QLJQC6S4P5JD43YT77C573NKRI

not attested not anchored not stored refs pending

Lyapunov-Based Boundary Feedback Design For Parabolic PDEs

Iasson Karafyllis

arxiv:1905.01701 v1 · 2019-05-05 · 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{QLJQC6S4P5JD43YT77C573NKRI}

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	2026-05-17T23:46:57.701913Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82d3017a5c7f523e6f13ffc5dfedaa8a1f5c41e94586d1b890f06efc10ac26ff

Aliases

arxiv: 1905.01701 · arxiv_version: 1905.01701v1 · doi: 10.48550/arxiv.1905.01701 · pith_short_12: QLJQC6S4P5JD · pith_short_16: QLJQC6S4P5JD43YT · pith_short_8: QLJQC6S4

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/QLJQC6S4P5JD43YT77C573NKRI \
  | 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: 82d3017a5c7f523e6f13ffc5dfedaa8a1f5c41e94586d1b890f06efc10ac26ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8717e02e04650e70fa2b3cdd3172b48945429affc73d5ee6466c078242aa0e8e",
    "cross_cats_sorted": [
      "cs.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-05-05T15:22:57Z",
    "title_canon_sha256": "5cd062525d5c69ec816c39abcf543f2a682c258cc59139cc2ce1692c3d3f4a09"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.01701",
    "kind": "arxiv",
    "version": 1
  }
}