Pith Number

pith:G4TKDPWJ

pith:2025:G4TKDPWJHBCUVWPFFKTMVBXNQF

not attested not anchored not stored refs pending

Hierarchical Multi-Positive Contrastive Learning for Patent Image Retrieval

Angelos Nalmpantis, Emma Beauxis-Aussalet, Kshitij Kavimandan, Robert-Jan Sips

arxiv:2506.13496 v3 · 2025-06-16 · cs.CV · cs.IR · 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{G4TKDPWJHBCUVWPFFKTMVBXNQF}

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	2026-07-05T11:24:23.884270Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3726a1bec938454ad9e52aa6ca86ed81554e6d7238c82fb0acbc344100fa4539

Aliases

arxiv: 2506.13496 · arxiv_version: 2506.13496v3 · doi: 10.48550/arxiv.2506.13496 · pith_short_12: G4TKDPWJHBCU · pith_short_16: G4TKDPWJHBCUVWPF · pith_short_8: G4TKDPWJ

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/G4TKDPWJHBCUVWPFFKTMVBXNQF \
  | 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: 3726a1bec938454ad9e52aa6ca86ed81554e6d7238c82fb0acbc344100fa4539

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "763b841fa29ec23a7a57a63d5800e3ed494c1f55a53ebf4f3b8a21dea309a258",
    "cross_cats_sorted": [
      "cs.IR",
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2025-06-16T13:53:02Z",
    "title_canon_sha256": "46c5ca83e0fd819827f916c583a43e4cb3e9faa2066059bf73edcec6d308ffad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.13496",
    "kind": "arxiv",
    "version": 3
  }
}