Pith Number

pith:PM2QYZ4E

pith:2023:PM2QYZ4EKHHV7O6RBWEQFCUKVC

not attested not anchored not stored refs pending

Threshold-Consistent Margin Loss for Open-World Deep Metric Learning

Joe Tighe, Jun Fang, Linghan Xu, Qingming Tang, Qin Zhang, Yifan Xing, Ying Nian Wu

arxiv:2307.04047 v2 · 2023-07-08 · 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{PM2QYZ4EKHHV7O6RBWEQFCUKVC}

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	2026-07-05T07:55:22.961440Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b350c678451cf5fbbd10d89028a8aa8be54e72694f60be52900fc8161a2ebfa

Aliases

arxiv: 2307.04047 · arxiv_version: 2307.04047v2 · doi: 10.48550/arxiv.2307.04047 · pith_short_12: PM2QYZ4EKHHV · pith_short_16: PM2QYZ4EKHHV7O6R · pith_short_8: PM2QYZ4E

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/PM2QYZ4EKHHV7O6RBWEQFCUKVC \
  | 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: 7b350c678451cf5fbbd10d89028a8aa8be54e72694f60be52900fc8161a2ebfa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c50b2b01a7da1043fa1b01ebb6c7fc4aa2c0f21f0a306bcf2636ee1ceafc657a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2023-07-08T21:16:41Z",
    "title_canon_sha256": "920dc70c121dd42a36c6286d957063d04bab23f7f0f14dcd61cac9de48687cf0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2307.04047",
    "kind": "arxiv",
    "version": 2
  }
}