Pith Number

pith:CAPNO4DJ

pith:2017:CAPNO4DJNLGU4MQKA5XPP3YDWJ

not attested not anchored not stored refs pending

Systematic study of color spaces and components for the segmentation of sky/cloud images

Soumyabrata Dev, Stefan Winkler, Yee Hui Lee

arxiv:1701.04520 v1 · 2017-01-17 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CAPNO4DJNLGU4MQKA5XPP3YDWJ}

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	2026-05-18T00:52:43.449326Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

101ed770696acd4e320a076ef7ef03b25e1ff31df9e66ecd7e1cd459225ca1b5

Aliases

arxiv: 1701.04520 · arxiv_version: 1701.04520v1 · doi: 10.48550/arxiv.1701.04520 · pith_short_12: CAPNO4DJNLGU · pith_short_16: CAPNO4DJNLGU4MQK · pith_short_8: CAPNO4DJ

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/CAPNO4DJNLGU4MQKA5XPP3YDWJ \
  | 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: 101ed770696acd4e320a076ef7ef03b25e1ff31df9e66ecd7e1cd459225ca1b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e316a8904dbf300a4b69ca49534f13644a2afc254ef61616cb8fec3d9edd111",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2017-01-17T03:27:56Z",
    "title_canon_sha256": "46cef9428a4cdf8198f12317ea77e920cd2c84cdcef037965d08553b8fdcc100"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.04520",
    "kind": "arxiv",
    "version": 1
  }
}