Pith Number

pith:4H2SNA3P

pith:2020:4H2SNA3PGMAMTKIF4XIJEDVCEK

not attested not anchored not stored refs pending

Contrastive Similarity Matching for Supervised Learning

Cengiz Pehlevan, Nayantara Mudur, Shanshan Qin

arxiv:2002.10378 v5 · 2020-02-24 · cs.LG · q-bio.NC · 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{4H2SNA3PGMAMTKIF4XIJEDVCEK}

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	2026-07-05T01:57:14.814137Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1f526836f3300c9a905e5d0920ea222a1a8cbaae090d0125d3878f23d712c46

Aliases

arxiv: 2002.10378 · arxiv_version: 2002.10378v5 · doi: 10.48550/arxiv.2002.10378 · pith_short_12: 4H2SNA3PGMAM · pith_short_16: 4H2SNA3PGMAMTKIF · pith_short_8: 4H2SNA3P

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/4H2SNA3PGMAMTKIF4XIJEDVCEK \
  | 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: e1f526836f3300c9a905e5d0920ea222a1a8cbaae090d0125d3878f23d712c46

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf020b2bafb11795c13cf0f62d93b98bdd210dcd37c40995acafb30f0fc93818",
    "cross_cats_sorted": [
      "q-bio.NC",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2020-02-24T17:10:21Z",
    "title_canon_sha256": "cfc3d8f6e221690c6bcfd12e52cd50dfcebe8b1ebff6865bf3ccc3b9e5e6defb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.10378",
    "kind": "arxiv",
    "version": 5
  }
}