Pith Number

pith:QPS45GT6

pith:2019:QPS45GT6G6HKRZ4WIMXS33PR5U

not attested not anchored not stored refs pending

Hardness-Aware Deep Metric Learning

Jie Zhou, Jiwen Lu, Wenzhao Zheng, Zhaodong Chen

arxiv:1903.05503 v2 · 2019-03-13 · 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{QPS45GT6G6HKRZ4WIMXS33PR5U}

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.

Cited by

1 paper in Pith

Metric Learning for Adversarial Robustness

Receipt and verification

First computed	2026-07-05T00:23:48.922163Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83e5ce9a7e378ea8e796432f2dedf1ed008ad7459066b0c8325e9fcdfbb740ac

Aliases

arxiv: 1903.05503 · arxiv_version: 1903.05503v2 · doi: 10.48550/arxiv.1903.05503 · pith_short_12: QPS45GT6G6HK · pith_short_16: QPS45GT6G6HKRZ4W · pith_short_8: QPS45GT6

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/QPS45GT6G6HKRZ4WIMXS33PR5U \
  | 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: 83e5ce9a7e378ea8e796432f2dedf1ed008ad7459066b0c8325e9fcdfbb740ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "abfd63fcbe2c6e2606be62f728aaabb1443c84b0fbaad646b6bd9711480c98ed",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-03-13T14:14:54Z",
    "title_canon_sha256": "0b20e0af0fb2e20985e5a926c5b073fd0afe42cd166f01b256ef8396eceb9590"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.05503",
    "kind": "arxiv",
    "version": 2
  }
}