Pith Number

pith:WHCAPVNY

pith:2021:WHCAPVNYOHDPNTXAIOQOHNVDIR

not attested not anchored not stored refs pending

The Immersion and Invariance Wind Speed Estimator Revisited and New Results

Atindriyo Kusumo Pamososuryo, Jan-Willem van Wingerden, Riccardo M.G. Ferrari, Yichao Liu

arxiv:2104.07696 v2 · 2021-04-15 · eess.SY · 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{WHCAPVNYOHDPNTXAIOQOHNVDIR}

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	2026-07-05T03:12:03.152873Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b1c407d5b871c6f6cee043a0e3b6a34460fb4a296a33853f56edbad581dc04c9

Aliases

arxiv: 2104.07696 · arxiv_version: 2104.07696v2 · doi: 10.48550/arxiv.2104.07696 · pith_short_12: WHCAPVNYOHDP · pith_short_16: WHCAPVNYOHDPNTXA · pith_short_8: WHCAPVNY

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/WHCAPVNYOHDPNTXAIOQOHNVDIR \
  | 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: b1c407d5b871c6f6cee043a0e3b6a34460fb4a296a33853f56edbad581dc04c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "445729d111376e1bb06af2acf573ad9720b956f697c120c24cfeb5ed888d5cbb",
    "cross_cats_sorted": [
      "cs.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2021-04-15T18:06:55Z",
    "title_canon_sha256": "79a11ca51af4c4b664940c34b15d486f1833e8fced3e6729551b9ecbce9a569b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.07696",
    "kind": "arxiv",
    "version": 2
  }
}