Pith Number

pith:KYWOUALW

pith:2019:KYWOUALW2QO27ESSKGOF4NYTHI

not attested not anchored not stored refs pending

2nd Place and 2nd Place Solution to Kaggle Landmark Recognition andRetrieval Competition 2019

Cheng Cui, Hui Ren, Kaibing Chen, Xianglong Meng, Yuning Du

arxiv:1906.03990 v2 · 2019-06-10 · 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{KYWOUALW2QO27ESSKGOF4NYTHI}

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	2026-05-17T23:43:14.081195Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

562cea0176d41daf9252519c5e37133a198c5be2d64d7fd40b08bdb0ff8cbffc

Aliases

arxiv: 1906.03990 · arxiv_version: 1906.03990v2 · doi: 10.48550/arxiv.1906.03990 · pith_short_12: KYWOUALW2QO2 · pith_short_16: KYWOUALW2QO27ESS · pith_short_8: KYWOUALW

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/KYWOUALW2QO27ESSKGOF4NYTHI \
  | 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: 562cea0176d41daf9252519c5e37133a198c5be2d64d7fd40b08bdb0ff8cbffc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b8156e6471689625d2c07d1e186c8e7ac916e690163738baa89c607ca6da90dd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-06-10T14:04:37Z",
    "title_canon_sha256": "4ca23d6b899fd3995d609bf2a33cea90d0d91a6b09905d4418b0bd9ac79d168a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.03990",
    "kind": "arxiv",
    "version": 2
  }
}