Pith Number

pith:WNRXTONE

pith:2019:WNRXTONE5YJLWXAZB5I6XJFXUB

not attested not anchored not stored refs pending

Sky pixel detection in outdoor imagery using an adaptive algorithm and machine learning

Ariane Middel, Gideon D.P.A. Aschwanden, Haifeng Zhao, Jason Thompson, Jasper S. Wijnands, Jingcheng Wang, Kerry A. Nice, Mark Stevenson, Nan Zhao, Yiming Qiu

arxiv:1910.03182 v2 · 2019-10-08 · cs.CV · eess.IV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WNRXTONE5YJLWXAZB5I6XJFXUB}

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	2026-07-05T00:28:24.854475Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b36379b9a4ee12bb5c190f51eba4b7a04d37338853ae733154a2818a5036aecc

Aliases

arxiv: 1910.03182 · arxiv_version: 1910.03182v2 · doi: 10.48550/arxiv.1910.03182 · pith_short_12: WNRXTONE5YJL · pith_short_16: WNRXTONE5YJLWXAZ · pith_short_8: WNRXTONE

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/WNRXTONE5YJLWXAZB5I6XJFXUB \
  | 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: b36379b9a4ee12bb5c190f51eba4b7a04d37338853ae733154a2818a5036aecc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0932667bdd20b266c0f762c9464721bc5295f494b35a47361494c68a28bf81cb",
    "cross_cats_sorted": [
      "eess.IV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-10-08T02:45:38Z",
    "title_canon_sha256": "3562c87a2d3dd77bdb57019a1ff8f505d483cdb3bb11c23f6606e4c8920c45eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.03182",
    "kind": "arxiv",
    "version": 2
  }
}