Pith Number

pith:CBPVNIJO

pith:2022:CBPVNIJOMBXLPCGN2FC4VOB2MC

not attested not anchored not stored refs pending

Learning Deep Representations via Contrastive Learning for Instance Retrieval

Donald Wunsch, Tao Wu, Tie Luo

arxiv:2209.13832 v1 · 2022-09-28 · 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{CBPVNIJOMBXLPCGN2FC4VOB2MC}

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	2026-07-05T05:01:44.720008Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

105f56a12e606eb788cdd145cab83a6094aa8e7cd5153ed90651df490ac35fb2

Aliases

arxiv: 2209.13832 · arxiv_version: 2209.13832v1 · doi: 10.48550/arxiv.2209.13832 · pith_short_12: CBPVNIJOMBXL · pith_short_16: CBPVNIJOMBXLPCGN · pith_short_8: CBPVNIJO

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/CBPVNIJOMBXLPCGN2FC4VOB2MC \
  | 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: 105f56a12e606eb788cdd145cab83a6094aa8e7cd5153ed90651df490ac35fb2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c55cd3050f573e38a11c4679d862566c7c5d33f3d478909e4860bbea2c8208f9",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2022-09-28T04:36:34Z",
    "title_canon_sha256": "9caa247c9ae9fd65f6c0efacec819a504500e7d6b0c78686f9c366e0b5e1aa10"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2209.13832",
    "kind": "arxiv",
    "version": 1
  }
}