Pith Number

pith:QTA57EVQ

pith:2020:QTA57EVQ6REBE3LKQTMN7G5QIC

not attested not anchored not stored refs pending

Data-driven Meta-set Based Fine-Grained Visual Classification

Chuanyi Zhang, Qi Wu, Xiangbo Shu, Yazhou Yao, Zechao Li, Zhenmin Tang

arxiv:2008.02438 v1 · 2020-08-06 · cs.CV · cs.MM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QTA57EVQ6REBE3LKQTMN7G5QIC}

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	2026-07-05T01:25:05.341912Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84c1df92b0f448126d6a84d8df9bb040809ab9095af0fc7c5bec79c324f147a7

Aliases

arxiv: 2008.02438 · arxiv_version: 2008.02438v1 · doi: 10.48550/arxiv.2008.02438 · pith_short_12: QTA57EVQ6REB · pith_short_16: QTA57EVQ6REBE3LK · pith_short_8: QTA57EVQ

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/QTA57EVQ6REBE3LKQTMN7G5QIC \
  | 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: 84c1df92b0f448126d6a84d8df9bb040809ab9095af0fc7c5bec79c324f147a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c34d1db3c4811d34a178df3fb1f6354d8316a8a001a3c482acba7b979e108919",
    "cross_cats_sorted": [
      "cs.MM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2020-08-06T03:04:16Z",
    "title_canon_sha256": "958debbb628a769c0d46e8aa1bb0e3fe87c9c35b7cfac52b929ef82ad2db038b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2008.02438",
    "kind": "arxiv",
    "version": 1
  }
}