Pith Number

pith:S77P7PZT

pith:2013:S77P7PZTTNWP4V3JU6NSYVGNBT

not attested not anchored not stored refs pending

Passive Learning with Target Risk

Mehrdad Mahdavi, Rong Jin

arxiv:1302.2157 v2 · 2013-02-08 · 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{S77P7PZTTNWP4V3JU6NSYVGNBT}

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	2026-05-18T03:25:25.187937Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

97feffbf339b6cfe5769a79b2c54cd0cd0bea9c90d6310291852ee30870d0c8a

Aliases

arxiv: 1302.2157 · arxiv_version: 1302.2157v2 · doi: 10.48550/arxiv.1302.2157 · pith_short_12: S77P7PZTTNWP · pith_short_16: S77P7PZTTNWP4V3J · pith_short_8: S77P7PZT

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/S77P7PZTTNWP4V3JU6NSYVGNBT \
  | 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: 97feffbf339b6cfe5769a79b2c54cd0cd0bea9c90d6310291852ee30870d0c8a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "06868d6042b0c341c05b3a77ff5f6f9af0f7ffa42ecc229c5f3cb384680a55c6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2013-02-08T21:18:24Z",
    "title_canon_sha256": "ef7500503d1b97b0baf2c0d2bbd031a7f2e9782d75e1ca3a46687f8e9a82ba37"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.2157",
    "kind": "arxiv",
    "version": 2
  }
}