Pith Number

pith:WWNMQNTC

pith:2019:WWNMQNTCSQOYOVC7YFE5G7FD3L

not attested not anchored not stored refs pending

A Noise-aware Enhancement Method for Underexposed Images

Chien-Cheng Chien, Hitoshi Kiya, Yuma Kinoshita

arxiv:1904.10961 v1 · 2019-04-24 · cs.MM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WWNMQNTCSQOYOVC7YFE5G7FD3L}

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	2026-05-17T23:47:47.987731Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b59ac83662941d87545fc149d37ca3dac88acdfada5001b32cb9ebe42496f715

Aliases

arxiv: 1904.10961 · arxiv_version: 1904.10961v1 · doi: 10.48550/arxiv.1904.10961 · pith_short_12: WWNMQNTCSQOY · pith_short_16: WWNMQNTCSQOYOVC7 · pith_short_8: WWNMQNTC

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/WWNMQNTCSQOYOVC7YFE5G7FD3L \
  | 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: b59ac83662941d87545fc149d37ca3dac88acdfada5001b32cb9ebe42496f715

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3487fa4b017a0b7759c822f172a0b6fc7ca16a3c391e4168e609e1e69fa8daef",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MM",
    "submitted_at": "2019-04-24T09:42:33Z",
    "title_canon_sha256": "fddb082f98125f98bbe33f153919d6da736d3369756da6c7da57ca49e702a4a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.10961",
    "kind": "arxiv",
    "version": 1
  }
}