Pith Number

pith:QSPB3PML

pith:2020:QSPB3PMLCZSB5C6IU7IOAOJZNW

not attested not anchored not stored refs pending

Group Based Deep Shared Feature Learning for Fine-grained Image Classification

Vishal Monga, Xuelu Li

arxiv:2004.01817 v1 · 2020-04-04 · 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{QSPB3PMLCZSB5C6IU7IOAOJZNW}

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	2026-07-05T00:52:38.590923Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

849e1dbd8b16641e8bc8a7d0e039396d812bd8a8ed914ebd74d73ee304f388f9

Aliases

arxiv: 2004.01817 · arxiv_version: 2004.01817v1 · doi: 10.48550/arxiv.2004.01817 · pith_short_12: QSPB3PMLCZSB · pith_short_16: QSPB3PMLCZSB5C6I · pith_short_8: QSPB3PML

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/QSPB3PMLCZSB5C6IU7IOAOJZNW \
  | 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: 849e1dbd8b16641e8bc8a7d0e039396d812bd8a8ed914ebd74d73ee304f388f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dfbc9ba839f5f7699967d12aa29f7f93bed172410d5c72c768a1b5faa21b3162",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2020-04-04T00:01:11Z",
    "title_canon_sha256": "d858016ea3b611315e7aea196288249ae3d8be5cfd3b93b6cb7dfa997cf081ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.01817",
    "kind": "arxiv",
    "version": 1
  }
}