Pith Number

pith:EKG6QSZ4

pith:2016:EKG6QSZ4IOMNHYPJ3Q7U3JZYR6

not attested not anchored not stored refs pending

Neumann boundary feedback stabilization for a nonlinear wave equation: A strict $H^2$-Lyapunov function

G\"unter Leugering, Ke Wang, Martin Gugat

arxiv:1608.02368 v1 · 2016-08-08 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EKG6QSZ4IOMNHYPJ3Q7U3JZYR6}

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	2026-05-18T01:09:40.383219Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

228de84b3c4398d3e1e9dc3f4da7388f91901679d5f3629a3d388d889e48db0d

Aliases

arxiv: 1608.02368 · arxiv_version: 1608.02368v1 · doi: 10.48550/arxiv.1608.02368 · pith_short_12: EKG6QSZ4IOMN · pith_short_16: EKG6QSZ4IOMNHYPJ · pith_short_8: EKG6QSZ4

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/EKG6QSZ4IOMNHYPJ3Q7U3JZYR6 \
  | 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: 228de84b3c4398d3e1e9dc3f4da7388f91901679d5f3629a3d388d889e48db0d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fdea07f3d2aed744f1e9b9a8a761c0f44ee1ca490d1122482dd4507ffec53e19",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2016-08-08T09:59:01Z",
    "title_canon_sha256": "5af093cee0d40fed1df9dcdbf15b4729290032d4ad1d5ece7d2f5c8f3985b28c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.02368",
    "kind": "arxiv",
    "version": 1
  }
}