Pith Number

pith:FWU3LF2Z

pith:2018:FWU3LF2ZZG5I5R7P4PVVW3CEER

not attested not anchored not stored refs pending

Face Recognition via Centralized Coordinate Learning

Lei Zhang, Xianbiao Qi

arxiv:1801.05678 v1 · 2018-01-17 · 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{FWU3LF2ZZG5I5R7P4PVVW3CEER}

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	2026-05-18T00:25:40.452951Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2da9b59759c9ba8ec7efe3eb5b6c4424409d73d32d2ae9592cfa5da9d28d6df2

Aliases

arxiv: 1801.05678 · arxiv_version: 1801.05678v1 · doi: 10.48550/arxiv.1801.05678 · pith_short_12: FWU3LF2ZZG5I · pith_short_16: FWU3LF2ZZG5I5R7P · pith_short_8: FWU3LF2Z

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/FWU3LF2ZZG5I5R7P4PVVW3CEER \
  | 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: 2da9b59759c9ba8ec7efe3eb5b6c4424409d73d32d2ae9592cfa5da9d28d6df2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "749861deb88d327b91a2048b62ba60d25b8b756fd78dd13926ba4c2413e17229",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-01-17T14:32:40Z",
    "title_canon_sha256": "16b796de384af6a47e71d63587e7eb3c34f6957feac3a3defcd3bc867536979c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.05678",
    "kind": "arxiv",
    "version": 1
  }
}