Pith Number

pith:PH3C2NB2

pith:2018:PH3C2NB2JQGASUPZNV3OEHJMAK

not attested not anchored not stored refs pending

Fully Understanding the Hashing Trick

Casper Benjamin Freksen, Kasper Green Larsen, Lior Kamma

arxiv:1805.08539 v1 · 2018-05-22 · cs.LG · cs.DS · math.FA · 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{PH3C2NB2JQGASUPZNV3OEHJMAK}

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	2026-05-18T00:15:26.091332Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

79f62d343a4c0c0951f96d76e21d2c02b79a063584f6bb068f9a75ff01304db9

Aliases

arxiv: 1805.08539 · arxiv_version: 1805.08539v1 · doi: 10.48550/arxiv.1805.08539 · pith_short_12: PH3C2NB2JQGA · pith_short_16: PH3C2NB2JQGASUPZ · pith_short_8: PH3C2NB2

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/PH3C2NB2JQGASUPZNV3OEHJMAK \
  | 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: 79f62d343a4c0c0951f96d76e21d2c02b79a063584f6bb068f9a75ff01304db9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28e4ac0797a58c2c70266c216e5f4825c43843c7d463551f2e6cf6220698bf08",
    "cross_cats_sorted": [
      "cs.DS",
      "math.FA",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2018-05-22T12:23:47Z",
    "title_canon_sha256": "e00861659154d6fe0dfe12371a1840bc5ff9c4cc1666b165381763e005f5ac99"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.08539",
    "kind": "arxiv",
    "version": 1
  }
}