Pith Number

pith:KLWKBZBB

pith:2025:KLWKBZBB6UBNQNRUGLBNVK6JI2

not attested not anchored not stored refs pending

Winter Noctilucent Clouds Following Sudden Stratospheric Warming: First Observations

Oleg S. Ugolnikov

arxiv:2501.05432 v3 · 2025-01-09 · physics.ao-ph · physics.geo-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KLWKBZBB6UBNQNRUGLBNVK6JI2}

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	2026-07-05T10:06:46.874546Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

52eca0e421f502d8363432c2daabc946a8a7fd364edcb84daf59f709328280d5

Aliases

arxiv: 2501.05432 · arxiv_version: 2501.05432v3 · doi: 10.48550/arxiv.2501.05432 · pith_short_12: KLWKBZBB6UBN · pith_short_16: KLWKBZBB6UBNQNRU · pith_short_8: KLWKBZBB

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/KLWKBZBB6UBNQNRUGLBNVK6JI2 \
  | 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: 52eca0e421f502d8363432c2daabc946a8a7fd364edcb84daf59f709328280d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e7c1f75ed982ed8f5a72d59cb0ee40b2f6f5b5c1e72d2334741f7957a52a807",
    "cross_cats_sorted": [
      "physics.geo-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ao-ph",
    "submitted_at": "2025-01-09T18:45:30Z",
    "title_canon_sha256": "7964e24c0d29e637469ea61fb4cc259c98b7b0131c492355800003de9464a265"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.05432",
    "kind": "arxiv",
    "version": 3
  }
}