Pith Number

pith:MEPPRL5G

pith:2016:MEPPRL5GXGZWNTKWTSX4UTCXVJ

not attested not anchored not stored refs pending

OPML: A One-Pass Closed-Form Solution for Online Metric Learning

Jing Huo, Lei Wang, Luping Zhou, Wenbin Li, Yang Gao, Yinghuan Shi

arxiv:1609.09178 v1 · 2016-09-29 · cs.LG · 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{MEPPRL5GXGZWNTKWTSX4UTCXVJ}

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	2026-05-18T01:03:38.578448Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

611ef8afa6b9b366cd569cafca4c57aa7c3348c6d9eec2a7920c6391beeb0ca2

Aliases

arxiv: 1609.09178 · arxiv_version: 1609.09178v1 · doi: 10.48550/arxiv.1609.09178 · pith_short_12: MEPPRL5GXGZW · pith_short_16: MEPPRL5GXGZWNTKW · pith_short_8: MEPPRL5G

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/MEPPRL5GXGZWNTKWTSX4UTCXVJ \
  | 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: 611ef8afa6b9b366cd569cafca4c57aa7c3348c6d9eec2a7920c6391beeb0ca2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1237e5acd43b954c308e1fbded2e2ab0b10dd0fa0ac7cc0bc84026cf1aa571c4",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2016-09-29T02:18:06Z",
    "title_canon_sha256": "428582a6b726389e868ee94815eb561c234cd70ac51d9cffa26cde39d4adefce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.09178",
    "kind": "arxiv",
    "version": 1
  }
}