Pith Number

pith:2B5PPEON

pith:2019:2B5PPEONQYGBPFQ54Q6XXRUEKK

not attested not anchored not stored refs pending

Power Gradient Descent

Marco Baiesi

arxiv:1906.04787 v1 · 2019-06-11 · cs.LG · cond-mat.stat-mech · cs.PF · 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{2B5PPEONQYGBPFQ54Q6XXRUEKK}

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	2026-05-17T23:43:32.264596Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d07af791cd860c17961de43d7bc68452a07fc13dbbd44336df271abe3ffb8b61

Aliases

arxiv: 1906.04787 · arxiv_version: 1906.04787v1 · doi: 10.48550/arxiv.1906.04787 · pith_short_12: 2B5PPEONQYGB · pith_short_16: 2B5PPEONQYGBPFQ5 · pith_short_8: 2B5PPEON

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/2B5PPEONQYGBPFQ54Q6XXRUEKK \
  | 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: d07af791cd860c17961de43d7bc68452a07fc13dbbd44336df271abe3ffb8b61

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1151fc4060b71ee878f98b221c46ff818c91da5d371a72bdb39fa74a4aa9d921",
    "cross_cats_sorted": [
      "cond-mat.stat-mech",
      "cs.PF",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-06-11T19:48:01Z",
    "title_canon_sha256": "f831341a7f286e3b7c32464ef958ca0975dc7342d2a507e7eae5ebe4f1d85312"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.04787",
    "kind": "arxiv",
    "version": 1
  }
}