Pith Number

pith:BVSP7VTV

pith:2021:BVSP7VTVB2DRDYKHWPCKPNIOOU

not attested not anchored not stored refs pending

Large Scale Long-tailed Product Recognition System at Alibaba

Pan Pan, Rong Jin, Xiangzeng Zhou, Yinghui Xu, Yun Zheng

arxiv:2102.04652 v1 · 2021-02-09 · 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{BVSP7VTVB2DRDYKHWPCKPNIOOU}

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	2026-07-05T02:14:03.260255Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d64ffd6750e8711e147b3c4a7b50e753dbd45008f4e4aa553c20f45ea452f9a

Aliases

arxiv: 2102.04652 · arxiv_version: 2102.04652v1 · doi: 10.48550/arxiv.2102.04652 · pith_short_12: BVSP7VTVB2DR · pith_short_16: BVSP7VTVB2DRDYKH · pith_short_8: BVSP7VTV

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/BVSP7VTVB2DRDYKHWPCKPNIOOU \
  | 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: 0d64ffd6750e8711e147b3c4a7b50e753dbd45008f4e4aa553c20f45ea452f9a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b9859be1ebb0f4107e85f102ca24f60921522a94576ad3e492b9eb45bc717f6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-02-09T05:34:30Z",
    "title_canon_sha256": "4ed556450db0d16c0ab444e63e5888326d4700542813c6d6586c72faf55b3a99"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.04652",
    "kind": "arxiv",
    "version": 1
  }
}