Pith Number

pith:JR442UVY

pith:2013:JR442UVY4MWXZGXHYISGGM7ZTS

not attested not anchored not stored refs pending

Learning Hash Functions Using Column Generation

Anthony Dick, Anton van den Hengel, Chunhua Shen, Guosheng Lin, Xi Li

arxiv:1303.0339 v1 · 2013-03-02 · 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{JR442UVY4MWXZGXHYISGGM7ZTS}

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	2026-05-18T03:31:56.445934Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c79cd52b8e32d7c9ae7c2246333f99c89f0fbd078067fc3c986eff0d4bdcfd9

Aliases

arxiv: 1303.0339 · arxiv_version: 1303.0339v1 · doi: 10.48550/arxiv.1303.0339 · pith_short_12: JR442UVY4MWX · pith_short_16: JR442UVY4MWXZGXH · pith_short_8: JR442UVY

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/JR442UVY4MWXZGXHYISGGM7ZTS \
  | 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: 4c79cd52b8e32d7c9ae7c2246333f99c89f0fbd078067fc3c986eff0d4bdcfd9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "54460b5fd1ef91c32933a00b0437a4c660ef50862bd4cf75f841eecf56530f8e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2013-03-02T03:01:46Z",
    "title_canon_sha256": "19ed4e59ba10821dc556ba55f99b4a2c028bc4dbad140780ba066a7f8e3ed3cd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.0339",
    "kind": "arxiv",
    "version": 1
  }
}