Pith Number

pith:OWT422A7

pith:2006:OWT422A7K7MMBZYIRR6D3VO6WJ

not attested not anchored not stored refs pending

Theory and observations of ice particle evolution in cirrus using Doppler radar: evidence for aggregation

A. J. Illingworth, C. D. Westbrook, E. J. O'Connor, R. J. Hogan

arxiv:physics/0608144 v2 · 2006-08-14 · physics.ao-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{OWT422A7K7MMBZYIRR6D3VO6WJ}

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	2026-05-18T01:38:06.698767Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

75a7cd681f57d8c0e7088c7c3dd5deb2461b5993733e772d4a0c5abf4c739c9f

Aliases

arxiv: physics/0608144 · arxiv_version: physics/0608144v2 · doi: 10.48550/arxiv.physics/0608144 · pith_short_12: OWT422A7K7MM · pith_short_16: OWT422A7K7MMBZYI · pith_short_8: OWT422A7

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/OWT422A7K7MMBZYIRR6D3VO6WJ \
  | 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: 75a7cd681f57d8c0e7088c7c3dd5deb2461b5993733e772d4a0c5abf4c739c9f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "93172e4050a61cb2b2c81b5725e230ed1530666d96513d10da333eaf0dcea660",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "physics.ao-ph",
    "submitted_at": "2006-08-14T11:05:52Z",
    "title_canon_sha256": "17a78b9e7843e2b03861186d235171db90ca54e2cbc36eb33127cbb9449f4f3c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0608144",
    "kind": "arxiv",
    "version": 2
  }
}