Pith Number

pith:ZYK5DAKO

pith:2014:ZYK5DAKOGDN3H3JL3WBBXZCH2W

not attested not anchored not stored refs pending

Local ensemble transform Kalman filter, a fast non-stationary control law for adaptive optics on ELTs: theoretical aspects and first simulation results

Cyril Petit, Laurent Bertino, Marc Bocquet, Marc Ferrari, Morgan Gray, Sergey Rodionov, Thierry Fusco

arxiv:1408.7069 v1 · 2014-08-29 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZYK5DAKOGDN3H3JL3WBBXZCH2W}

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	2026-05-18T01:42:11.702776Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ce15d1814e30dbb3ed2bdd821be447d588c250e02a7708b861554f0ec407407f

Aliases

arxiv: 1408.7069 · arxiv_version: 1408.7069v1 · doi: 10.48550/arxiv.1408.7069 · pith_short_12: ZYK5DAKOGDN3 · pith_short_16: ZYK5DAKOGDN3H3JL · pith_short_8: ZYK5DAKO

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/ZYK5DAKOGDN3H3JL3WBBXZCH2W \
  | 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: ce15d1814e30dbb3ed2bdd821be447d588c250e02a7708b861554f0ec407407f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1551530d20966388714c6cae65f635bf0aa0321c0a7254d55ba8de3df937188b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2014-08-29T16:44:44Z",
    "title_canon_sha256": "143eeda786e8d4cf57e774b7974d844a7f5364c2ee341407645f29e8ace5b198"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.7069",
    "kind": "arxiv",
    "version": 1
  }
}