Pith Number

pith:3C2UD3DC

pith:2017:3C2UD3DC74KGMPCYUVELNHJ3HL

not attested not anchored not stored refs pending

Contrastive-center loss for deep neural networks

Ce Qi, Fei Su

arxiv:1707.07391 v2 · 2017-07-24 · 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{3C2UD3DC74KGMPCYUVELNHJ3HL}

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	2026-05-18T00:36:49.214376Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d8b541ec62ff14663c58a548b69d3b3ae5df729e8e74ebf1d63be55139ec901f

Aliases

arxiv: 1707.07391 · arxiv_version: 1707.07391v2 · doi: 10.48550/arxiv.1707.07391 · pith_short_12: 3C2UD3DC74KG · pith_short_16: 3C2UD3DC74KGMPCY · pith_short_8: 3C2UD3DC

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/3C2UD3DC74KGMPCYUVELNHJ3HL \
  | 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: d8b541ec62ff14663c58a548b69d3b3ae5df729e8e74ebf1d63be55139ec901f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c091461620eccdd7992a24b22dfd5832d4f4cd8c832f16a7165fb506c956b2b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2017-07-24T03:45:47Z",
    "title_canon_sha256": "418dcf64533000b866c23a13c5e2312cdd7db43241fdd49c1c1fd4dd41aa7651"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.07391",
    "kind": "arxiv",
    "version": 2
  }
}