Pith Number

pith:FZGWTE4A

pith:2019:FZGWTE4A65DNFLFMODMLALDB5V

not attested not anchored not stored refs pending

Feedback Stabilization of the Two-Dimensional Navier-Stokes Equations by Value Function Approximation

Karl Kunisch, Laurent Pfeiffer, Tobias Breiten

arxiv:1902.00394 v3 · 2019-02-01 · 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{FZGWTE4A65DNFLFMODMLALDB5V}

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	2026-05-17T23:43:16.843499Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e4d699380f746d2acac70d8b02c61ed6ae5920cf46817ac6f924dac634108a5

Aliases

arxiv: 1902.00394 · arxiv_version: 1902.00394v3 · doi: 10.48550/arxiv.1902.00394 · pith_short_12: FZGWTE4A65DN · pith_short_16: FZGWTE4A65DNFLFM · pith_short_8: FZGWTE4A

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/FZGWTE4A65DNFLFMODMLALDB5V \
  | 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: 2e4d699380f746d2acac70d8b02c61ed6ae5920cf46817ac6f924dac634108a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eef15f0c0474387c2ae4df24c5a5d6e7f9ef50c167374184d38389e7c3a93c2f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-02-01T15:14:08Z",
    "title_canon_sha256": "e536f646bc21e4975bae02aef2e8f9865ed91957193d0bf617bb716d53e735d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.00394",
    "kind": "arxiv",
    "version": 3
  }
}