Pith Number

pith:ATNPDCNS

pith:2009:ATNPDCNSC5R6DWW3VBG4G2RS3I

not attested not anchored not stored refs pending

Testing the influence of small crystals on ice size spectra using Doppler lidar observations

A. J. Illingworth, C. D. Westbrook

arxiv:0901.0857 v1 · 2009-01-07 · 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{ATNPDCNSC5R6DWW3VBG4G2RS3I}

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	2026-05-18T02:15:03.080995Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

04daf189b21763e1dadba84dc36a32da09900ef93cb0594ab00d1057f889bcb0

Aliases

arxiv: 0901.0857 · arxiv_version: 0901.0857v1 · doi: 10.48550/arxiv.0901.0857 · pith_short_12: ATNPDCNSC5R6 · pith_short_16: ATNPDCNSC5R6DWW3 · pith_short_8: ATNPDCNS

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/ATNPDCNSC5R6DWW3VBG4G2RS3I \
  | 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: 04daf189b21763e1dadba84dc36a32da09900ef93cb0594ab00d1057f889bcb0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1530483cfb250b0c054dd68c93bd4307aa7b35aa147e9737136c09e08399f00f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ao-ph",
    "submitted_at": "2009-01-07T16:07:43Z",
    "title_canon_sha256": "72ffb33bb5030c0d278bee86b27f4e2276f3d91c721ed097ffdc4f1cacced01a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.0857",
    "kind": "arxiv",
    "version": 1
  }
}