Pith Number

pith:7E7RGHPT

pith:2019:7E7RGHPTNPVUZP3VKTT3SZQ63Q

not attested not anchored not stored refs pending

Projecting "better than randomly": How to reduce the dimensionality of very large datasets in a way that outperforms random projections

Di Zhang, Glenn Chisholm, Matt Wolff, Michael Wojnowicz, Xuan Zhao

arxiv:1901.00630 v1 · 2019-01-03 · stat.ML · 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{7E7RGHPTNPVUZP3VKTT3SZQ63Q}

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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	2026-05-17T23:57:01.847709Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f93f131df36beb4cbf7554e7b9661edc0d5e4f8a27a607d867d16520a2233f3b

Aliases

arxiv: 1901.00630 · arxiv_version: 1901.00630v1 · doi: 10.48550/arxiv.1901.00630 · pith_short_12: 7E7RGHPTNPVU · pith_short_16: 7E7RGHPTNPVUZP3V · pith_short_8: 7E7RGHPT

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/7E7RGHPTNPVUZP3VKTT3SZQ63Q \
  | 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: f93f131df36beb4cbf7554e7b9661edc0d5e4f8a27a607d867d16520a2233f3b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21f15775fcc92255002be775914eb636c50bd5ac13b88237185c000a8331beda",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2019-01-03T06:47:37Z",
    "title_canon_sha256": "056e3966dc3c2b19f77017b1d02f8c9a0a9ccdc698752ece21e3c43602e24515"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.00630",
    "kind": "arxiv",
    "version": 1
  }
}