Pith Number

pith:HOJUTVSH

pith:2013:HOJUTVSHHGRGMXAS2P23RAI5T6

not attested not anchored not stored refs pending

An Efficient Dual Approach to Distance Metric Learning

Anton van den Hengel, Chunhua Shen, Fayao Liu, Junae Kim, Lei Wang

arxiv:1302.3219 v1 · 2013-02-13 · 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{HOJUTVSHHGRGMXAS2P23RAI5T6}

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	2026-05-18T03:33:39.489061Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3b9349d64739a2665c12d3f5b8811d9f9470a170d31ef15ac4a6cc6c4628a924

Aliases

arxiv: 1302.3219 · arxiv_version: 1302.3219v1 · doi: 10.48550/arxiv.1302.3219 · pith_short_12: HOJUTVSHHGRG · pith_short_16: HOJUTVSHHGRGMXAS · pith_short_8: HOJUTVSH

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/HOJUTVSHHGRGMXAS2P23RAI5T6 \
  | 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: 3b9349d64739a2665c12d3f5b8811d9f9470a170d31ef15ac4a6cc6c4628a924

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c53b3b5fb80c25fa9bd23ffcf4a685f00d1e8506eafe35379accbd380f4fb33a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2013-02-13T08:48:53Z",
    "title_canon_sha256": "9ae8884b0f0f926291c133f31df7a759e8a2ec74bc635e61020a22fb76f60449"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.3219",
    "kind": "arxiv",
    "version": 1
  }
}