Pith Number

pith:4LXDPCHZ

pith:2019:4LXDPCHZ3BI55OJCMVIHWGQL6I

not attested not anchored not stored refs pending

Fast Fourier Color Constancy and Grayness Index for ISPA Illumination Estimation Challenge

Huanglin Yu, Ke Chen, Yanlin Qian

arxiv:1908.02076 v2 · 2019-08-06 · 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{4LXDPCHZ3BI55OJCMVIHWGQL6I}

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	2026-07-05T00:05:13.013253Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2ee3788f9d851deb92265507b1a0bf22dde548ce748b2c27860d4441e197b29

Aliases

arxiv: 1908.02076 · arxiv_version: 1908.02076v2 · doi: 10.48550/arxiv.1908.02076 · pith_short_12: 4LXDPCHZ3BI5 · pith_short_16: 4LXDPCHZ3BI55OJC · pith_short_8: 4LXDPCHZ

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/4LXDPCHZ3BI55OJCMVIHWGQL6I \
  | 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: e2ee3788f9d851deb92265507b1a0bf22dde548ce748b2c27860d4441e197b29

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d5ac17d08ed7b81689d6c65afa28b2e4cd6ba6b49ef5a5fb5a91de9989ea1173",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-08-06T11:03:41Z",
    "title_canon_sha256": "589c9ed065f5ec5b837b8b90a8a03dacc06688cb1097ac5f343850071c82594c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.02076",
    "kind": "arxiv",
    "version": 2
  }
}