Pith Number

pith:ZRQJ42HA

pith:2013:ZRQJ42HAKOLKB6R6PCBWCQXGBL

not attested not anchored not stored refs pending

ECOC-Based Training of Neural Networks for Face Recognition

Nima Hatami, Reza Ebrahimpour, Reza Ghaderi

arxiv:1312.3990 v1 · 2013-12-14 · cs.CV · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZRQJ42HAKOLKB6R6PCBWCQXGBL}

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	2026-05-18T00:57:52.438107Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc609e68e05396a0fa3e78836142e60ac298c2d9c9a11d40833007ba66fdeddc

Aliases

arxiv: 1312.3990 · arxiv_version: 1312.3990v1 · doi: 10.48550/arxiv.1312.3990 · pith_short_12: ZRQJ42HAKOLK · pith_short_16: ZRQJ42HAKOLKB6R6 · pith_short_8: ZRQJ42HA

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/ZRQJ42HAKOLKB6R6PCBWCQXGBL \
  | 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: cc609e68e05396a0fa3e78836142e60ac298c2d9c9a11d40833007ba66fdeddc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f5a8b1e1a74c4640e7c97f8e4b543a75d5738696f1d8b42456b784751ca17eb",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2013-12-14T00:29:36Z",
    "title_canon_sha256": "fda083f10cb7e050a75274b6f56be66f8e8707132e525208158e22a09f802f52"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.3990",
    "kind": "arxiv",
    "version": 1
  }
}