Pith Number

pith:2OFPQ3WJ

pith:2019:2OFPQ3WJALMU6CT2MZB3ODCBNX

not attested not anchored not stored refs pending

Angular Learning: Toward Discriminative Embedded Features

JT Wu, L.Wang

arxiv:1912.07819 v1 · 2019-12-17 · cs.CV · cs.LG · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2OFPQ3WJALMU6CT2MZB3ODCBNX}

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	2026-07-05T00:26:46.200258Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d38af86ec902d94f0a7a6643b70c416ddf2b3df0a67704149ddcda8b440ea28a

Aliases

arxiv: 1912.07819 · arxiv_version: 1912.07819v1 · doi: 10.48550/arxiv.1912.07819 · pith_short_12: 2OFPQ3WJALMU · pith_short_16: 2OFPQ3WJALMU6CT2 · pith_short_8: 2OFPQ3WJ

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/2OFPQ3WJALMU6CT2MZB3ODCBNX \
  | 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: d38af86ec902d94f0a7a6643b70c416ddf2b3df0a67704149ddcda8b440ea28a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad53a19e560eca763e4909b2935cf51155562415ab3cbbbb64ed4c7b3db298fb",
    "cross_cats_sorted": [
      "cs.LG",
      "stat.ML"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-12-17T05:08:20Z",
    "title_canon_sha256": "c5b09837d17b3fd211cccf80546e1c6b4772ffabde1c5f5fc8cbd3a5ba58cc6b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.07819",
    "kind": "arxiv",
    "version": 1
  }
}