Pith Number

pith:N2FCEGDE

pith:2017:N2FCEGDEZ3ZRFNHN64EJ6SVAEM

not attested not anchored not stored refs pending

DeepKSPD: Learning Kernel-matrix-based SPD Representation for Fine-grained Image Recognition

Lei Wang, Luping Zhou, Melih Engin, Xinwang Liu

arxiv:1711.04047 v1 · 2017-11-11 · 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{N2FCEGDEZ3ZRFNHN64EJ6SVAEM}

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	2026-05-18T00:30:50.236279Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6e8a221864cef312b4edf7089f4aa023252fc45302771cea14bee1a91c97b1c4

Aliases

arxiv: 1711.04047 · arxiv_version: 1711.04047v1 · doi: 10.48550/arxiv.1711.04047 · pith_short_12: N2FCEGDEZ3ZR · pith_short_16: N2FCEGDEZ3ZRFNHN · pith_short_8: N2FCEGDE

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/N2FCEGDEZ3ZRFNHN64EJ6SVAEM \
  | 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: 6e8a221864cef312b4edf7089f4aa023252fc45302771cea14bee1a91c97b1c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "786746364d749080029082e093419c7398fc837746ca2dab1cd05cd827e44115",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2017-11-11T00:41:32Z",
    "title_canon_sha256": "3e3840688129d3c8f76822c992ee8b4670fd3b1dbd415fc83900101eeb04e93a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.04047",
    "kind": "arxiv",
    "version": 1
  }
}