Pith Number

pith:HRJCG5CZ

pith:2021:HRJCG5CZ2O3ZREVV4RWMVIDY7P

not attested not anchored not stored refs pending

Does Face Recognition Error Echo Gender Classification Error?

Kevin W. Bowyer, Michael C. King, V\'itor Albiero, Ying Qiu

arxiv:2104.13803 v1 · 2021-04-28 · cs.CV · cs.AI · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HRJCG5CZ2O3ZREVV4RWMVIDY7P}

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	2026-07-05T02:36:04.349853Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c52237459d3b79892b5e46ccaa078fbcf1b6f1e88d0cd2625b9fdc12448aeb4

Aliases

arxiv: 2104.13803 · arxiv_version: 2104.13803v1 · doi: 10.48550/arxiv.2104.13803 · pith_short_12: HRJCG5CZ2O3Z · pith_short_16: HRJCG5CZ2O3ZREVV · pith_short_8: HRJCG5CZ

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/HRJCG5CZ2O3ZREVV4RWMVIDY7P \
  | 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: 3c52237459d3b79892b5e46ccaa078fbcf1b6f1e88d0cd2625b9fdc12448aeb4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c8d8879d113164c548dfdfbdf12ee168b927577a687e6f20170e6802da8c4e8",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-04-28T14:43:31Z",
    "title_canon_sha256": "43d0c3ac34c9b963041d321252b7bbc098e6ddb7fede66d232e65507129a252a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.13803",
    "kind": "arxiv",
    "version": 1
  }
}