Pith Number

pith:2ZRGJ2PW

pith:2016:2ZRGJ2PW543U4I57VQ4CVNNT5E

not attested not anchored not stored refs pending

Range Loss for Deep Face Recognition with Long-tail

Xiao Zhang, Yandong Wen, Yu Qiao, ZhiFeng Li, Zhiyuan Fang

arxiv:1611.08976 v1 · 2016-11-28 · 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{2ZRGJ2PW543U4I57VQ4CVNNT5E}

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	2026-05-18T00:56:29.683548Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d66264e9f6ef374e23bfac382ab5b3e93b3c1d394b3f20d1676d2459dd26a4aa

Aliases

arxiv: 1611.08976 · arxiv_version: 1611.08976v1 · doi: 10.48550/arxiv.1611.08976 · pith_short_12: 2ZRGJ2PW543U · pith_short_16: 2ZRGJ2PW543U4I57 · pith_short_8: 2ZRGJ2PW

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/2ZRGJ2PW543U4I57VQ4CVNNT5E \
  | 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: d66264e9f6ef374e23bfac382ab5b3e93b3c1d394b3f20d1676d2459dd26a4aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "89e793e760fa9fd107b9dc22e985310e96311a56690d1fa4647644f9fe873c23",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2016-11-28T03:41:46Z",
    "title_canon_sha256": "12a2a6a54cec607231d6964e79a99f4b90e495658eeb5ffcb3cce2e844f47d22"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.08976",
    "kind": "arxiv",
    "version": 1
  }
}