Pith Number

pith:GVZAQXJK

pith:2026:GVZAQXJKU4YGAEDB6E5T5PWRDS

not attested not anchored not stored refs pending

Bridging the Catalog-to-Real Gap: Scalable Product Recognition via Multi-Stage Contrastive Learning

Anyi Zhang, Joy Mazumder, Kiril Lomakin

arxiv:2607.09888 v1 · 2026-07-10 · 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{GVZAQXJKU4YGAEDB6E5T5PWRDS}

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	2026-07-14T00:18:41.638025Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3572085d2aa730601061f13b3ebed11c919b3bbf25d0aae1dfdaa85bbdacffc0

Aliases

arxiv: 2607.09888 · arxiv_version: 2607.09888v1 · doi: 10.48550/arxiv.2607.09888 · pith_short_12: GVZAQXJKU4YG · pith_short_16: GVZAQXJKU4YGAEDB · pith_short_8: GVZAQXJK

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/GVZAQXJKU4YGAEDB6E5T5PWRDS \
  | 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: 3572085d2aa730601061f13b3ebed11c919b3bbf25d0aae1dfdaa85bbdacffc0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e39b594fbf4c749187104f9bfcd25bc5a5275312cdab266107d67855876bd062",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-07-10T18:27:23Z",
    "title_canon_sha256": "38caf3ca4c63fdd7696beaf995f5910dba3644c8fbcad734b3852ad876d44f46"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.09888",
    "kind": "arxiv",
    "version": 1
  }
}