Pith Number

pith:SQB66URV

pith:2019:SQB66URVJSVKB2J3HKRWPVLMIW

not attested not anchored not stored refs pending

Input-to-state stability for parabolic boundary control: Linear and semi-linear systems

Felix Schwenninger

arxiv:1908.08317 v1 · 2019-08-22 · math.OC · math.AP · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SQB66URVJSVKB2J3HKRWPVLMIW}

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	2026-07-05T04:02:50.692701Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9403ef52354caaa0e93b3aa367d56c45b95c71d4001ba8dd0847b0911bdf3d54

Aliases

arxiv: 1908.08317 · arxiv_version: 1908.08317v1 · doi: 10.48550/arxiv.1908.08317 · pith_short_12: SQB66URVJSVK · pith_short_16: SQB66URVJSVKB2J3 · pith_short_8: SQB66URV

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/SQB66URVJSVKB2J3HKRWPVLMIW \
  | 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: 9403ef52354caaa0e93b3aa367d56c45b95c71d4001ba8dd0847b0911bdf3d54

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b4c672fb47c3adac2f783609767604842588bb7a2c90bce99bac81dcae22c401",
    "cross_cats_sorted": [
      "math.AP",
      "math.FA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-08-22T11:27:17Z",
    "title_canon_sha256": "aff8d39ebc145fb787d7ee33bb90381cb23e36bb0fbdb80e2c60fab57e8466ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.08317",
    "kind": "arxiv",
    "version": 1
  }
}