Pith Number

pith:ULQWYWG4

pith:2011:ULQWYWG4YZHFMVIOHBYHAQQNUC

not attested not anchored not stored refs pending

Efficient Regression in Metric Spaces via Approximate Lipschitz Extension

Aryeh Kontorovich, Lee-Ad Gottlieb, Robert Krauthgamer

arxiv:1111.4470 v3 · 2011-11-18 · 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{ULQWYWG4YZHFMVIOHBYHAQQNUC}

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	2026-05-18T00:45:54.885112Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2e16c58dcc64e56550e387070420da0977c9fbc2017e404e43187b7ec068386

Aliases

arxiv: 1111.4470 · arxiv_version: 1111.4470v3 · doi: 10.48550/arxiv.1111.4470 · pith_short_12: ULQWYWG4YZHF · pith_short_16: ULQWYWG4YZHFMVIO · pith_short_8: ULQWYWG4

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/ULQWYWG4YZHFMVIOHBYHAQQNUC \
  | 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: a2e16c58dcc64e56550e387070420da0977c9fbc2017e404e43187b7ec068386

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa582178e9a130b1988bd6f7867bd875e58507924abebc3f0c4827ad9699df94",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2011-11-18T20:32:33Z",
    "title_canon_sha256": "71dc570e7974bda13bd0305bcb979acf8b0a87cf3dc3bb038f7274b435b6fea1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.4470",
    "kind": "arxiv",
    "version": 3
  }
}