Pith Number

pith:ZAYWWMXZ

pith:2020:ZAYWWMXZJHDX4PV7BW7A2IQ3BR

not attested not anchored not stored refs pending

FaceHop: A Light-Weight Low-Resolution Face Gender Classification Method

C.-C. Jay Kuo, Mozhdeh Rouhsedaghat, Shuowen Hu, Suya You, Xiou Ge, Yifan Wang

arxiv:2007.09510 v3 · 2020-07-18 · 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{ZAYWWMXZJHDX4PV7BW7A2IQ3BR}

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	2026-07-05T01:51:20.827533Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c8316b32f949c77e3ebf0dbe0d221b0c79f8c4c301d5364b963d03c9e43e761a

Aliases

arxiv: 2007.09510 · arxiv_version: 2007.09510v3 · doi: 10.48550/arxiv.2007.09510 · pith_short_12: ZAYWWMXZJHDX · pith_short_16: ZAYWWMXZJHDX4PV7 · pith_short_8: ZAYWWMXZ

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/ZAYWWMXZJHDX4PV7BW7A2IQ3BR \
  | 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: c8316b32f949c77e3ebf0dbe0d221b0c79f8c4c301d5364b963d03c9e43e761a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0cacd95c225cf5afc56b6076d66bd39702c5324392da07db4afca77660f6e899",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2020-07-18T19:59:31Z",
    "title_canon_sha256": "b9411728801d65d141d7d98dc639c743f3b22ca9c4bf3ba92daa6e9c258e79a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.09510",
    "kind": "arxiv",
    "version": 3
  }
}