Pith Number

pith:DYXWYYGY

pith:2018:DYXWYYGYFUDCE3M2FJ5BP7SFOD

not attested not anchored not stored refs pending

Ring loss: Convex Feature Normalization for Face Recognition

Dipan K. Pal, Marios Savvides, Yutong Zheng

arxiv:1803.00130 v1 · 2018-02-28 · 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{DYXWYYGYFUDCE3M2FJ5BP7SFOD}

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	2026-05-18T00:22:13.268193Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e2f6c60d82d06226d9a2a7a17fe4570f5016aa72dc476d974fb63b37bd0db23

Aliases

arxiv: 1803.00130 · arxiv_version: 1803.00130v1 · doi: 10.48550/arxiv.1803.00130 · pith_short_12: DYXWYYGYFUDC · pith_short_16: DYXWYYGYFUDCE3M2 · pith_short_8: DYXWYYGY

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/DYXWYYGYFUDCE3M2FJ5BP7SFOD \
  | 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: 1e2f6c60d82d06226d9a2a7a17fe4570f5016aa72dc476d974fb63b37bd0db23

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16eb57d8480c98639b7fdff93eae46e81c5dfc01e95e651b9942d035a415ce86",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-02-28T23:13:07Z",
    "title_canon_sha256": "df68f7b63e46af5908e278302e1686393a85ab4c89db71f88f441fa60b46c805"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.00130",
    "kind": "arxiv",
    "version": 1
  }
}