Pith Number

pith:G7MTELQX

pith:2019:G7MTELQXU6OXKF66GR6FH3T2F3

not attested not anchored not stored refs pending

Least Squares Approximation for a Distributed System

Feng Li, Hansheng Wang, Xuening Zhu

arxiv:1908.04904 v4 · 2019-08-14 · stat.ME · cs.DC · cs.LG · stat.CO · 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{G7MTELQXU6OXKF66GR6FH3T2F3}

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	2026-07-05T02:38:27.445408Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

37d9322e17a79d7517de347c53ee7a2ec41d8fcdf812ba642091f79811c51dc8

Aliases

arxiv: 1908.04904 · arxiv_version: 1908.04904v4 · doi: 10.48550/arxiv.1908.04904 · pith_short_12: G7MTELQXU6OX · pith_short_16: G7MTELQXU6OXKF66 · pith_short_8: G7MTELQX

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/G7MTELQXU6OXKF66GR6FH3T2F3 \
  | 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: 37d9322e17a79d7517de347c53ee7a2ec41d8fcdf812ba642091f79811c51dc8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8337abf9d9594c4fce81c0aaf748733ac7f83718009b2b8fc4666ffa0d019119",
    "cross_cats_sorted": [
      "cs.DC",
      "cs.LG",
      "stat.CO",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2019-08-14T01:05:21Z",
    "title_canon_sha256": "77b8e893ec4388829ca7082efc9e5bc0bca0752badbca7f66d745cb328cf1fc4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.04904",
    "kind": "arxiv",
    "version": 4
  }
}