Pith Number

pith:FOKX3ZIS

pith:2018:FOKX3ZISS6KLVNZS4XQQRWVAV5

not attested not anchored not stored refs pending

Image contrast enhancement using fuzzy logic

Samrudh Kumar, Sandeep Joshi

arxiv:1809.04529 v1 · 2018-09-12 · 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{FOKX3ZISS6KLVNZS4XQQRWVAV5}

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	2026-05-18T00:05:52.029559Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b957de5129794bab732e5e108daa0af7391fb2a0bea7a82fd74b68582c844b3

Aliases

arxiv: 1809.04529 · arxiv_version: 1809.04529v1 · doi: 10.48550/arxiv.1809.04529 · pith_short_12: FOKX3ZISS6KL · pith_short_16: FOKX3ZISS6KLVNZS · pith_short_8: FOKX3ZIS

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/FOKX3ZISS6KLVNZS4XQQRWVAV5 \
  | 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: 2b957de5129794bab732e5e108daa0af7391fb2a0bea7a82fd74b68582c844b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "df6466c90f8a49e3c23ca795c33df8cd46c355bff5b49befd4551e3514ac6613",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-09-12T15:46:48Z",
    "title_canon_sha256": "2e9b39d0a7f0bc642516fdce9e5e893d64a40476233c6cc198c365ac1a769431"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.04529",
    "kind": "arxiv",
    "version": 1
  }
}