Pith Number

pith:DN4KYLDF

pith:2019:DN4KYLDFKRCTUV3LA7RSENLSBJ

not attested not anchored not stored refs pending

Enhancing Underexposed Photos using Perceptually Bidirectional Similarity

Chunxia Xiao, Lei Zhu, Qing Zhang, Wei-Shi Zheng, Yongwei Nie

arxiv:1907.10992 v3 · 2019-07-25 · 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{DN4KYLDFKRCTUV3LA7RSENLSBJ}

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	2026-07-05T01:17:15.814238Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1b78ac2c6554453a576b07e32235720a4ed95687d9f9a492f1440be26ac78b08

Aliases

arxiv: 1907.10992 · arxiv_version: 1907.10992v3 · doi: 10.48550/arxiv.1907.10992 · pith_short_12: DN4KYLDFKRCT · pith_short_16: DN4KYLDFKRCTUV3L · pith_short_8: DN4KYLDF

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/DN4KYLDFKRCTUV3LA7RSENLSBJ \
  | 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: 1b78ac2c6554453a576b07e32235720a4ed95687d9f9a492f1440be26ac78b08

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "232c4f77c1c44b7d6ea555b3a018900d56031bed7a5a1966a0119e054cdda1cb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-07-25T12:01:59Z",
    "title_canon_sha256": "7da5314856ad375decfedb5a969e392730079af2e6c6e904024effa21c37a20d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.10992",
    "kind": "arxiv",
    "version": 3
  }
}