Pith Number

pith:BXA7T3K2

pith:2019:BXA7T3K26YSG5I4E3F73MHICEU

not attested not anchored not stored refs pending

Relaxed 2-D Principal Component Analysis by $L_p$ Norm for Face Recognition

Mei-Xiang Zhao, Xiao Chen, Yunfeng Cai, Zhi-Gang Jia

arxiv:1905.06458 v1 · 2019-05-15 · 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{BXA7T3K26YSG5I4E3F73MHICEU}

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	2026-07-05T01:39:53.906235Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0dc1f9ed5af6246ea384d97fb61d02251f61c3dadebdd2a3ff8d63f6d321e70d

Aliases

arxiv: 1905.06458 · arxiv_version: 1905.06458v1 · doi: 10.48550/arxiv.1905.06458 · pith_short_12: BXA7T3K26YSG · pith_short_16: BXA7T3K26YSG5I4E · pith_short_8: BXA7T3K2

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/BXA7T3K26YSG5I4E3F73MHICEU \
  | 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: 0dc1f9ed5af6246ea384d97fb61d02251f61c3dadebdd2a3ff8d63f6d321e70d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "182f952fcdfaf38f7e5afc23c4d5abeee79f56ebf63a0cbf941bd2fa95b3db99",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-05-15T22:23:09Z",
    "title_canon_sha256": "020ae9c2ec80fa65a12d50787906a8427960401fb50ceb43c81ed6af25e14509"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.06458",
    "kind": "arxiv",
    "version": 1
  }
}