Pith Number

pith:WFLSEPH3

pith:2021:WFLSEPH3D5RD2PCDSGUEHP2YSZ

not attested not anchored not stored refs pending

Deep Metric Learning for Few-Shot Image Classification: A Review of Recent Developments

Jing-Hao Xue, Xiaochen Yang, Xiaoxu Li, Zhanyu Ma

arxiv:2105.08149 v2 · 2021-05-17 · cs.CV · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WFLSEPH3D5RD2PCDSGUEHP2YSZ}

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	2026-07-05T04:34:45.526442Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b157223cfb1f623d3c4391a843bf58967b7e1fd25f5ae88c35aa44851e87bd19

Aliases

arxiv: 2105.08149 · arxiv_version: 2105.08149v2 · doi: 10.48550/arxiv.2105.08149 · pith_short_12: WFLSEPH3D5RD · pith_short_16: WFLSEPH3D5RD2PCD · pith_short_8: WFLSEPH3

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/WFLSEPH3D5RD2PCDSGUEHP2YSZ \
  | 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: b157223cfb1f623d3c4391a843bf58967b7e1fd25f5ae88c35aa44851e87bd19

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e200f865fa205aefe1c5899659d77ad1df76ae652105cacf151edfbcda21903b",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-05-17T20:27:59Z",
    "title_canon_sha256": "bf46095f2a4c8b31bb64c6c1d11902b738015dff6e3883da0ef4f0d69e37a8ec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.08149",
    "kind": "arxiv",
    "version": 2
  }
}