Pith Number

pith:YD2R7N27

pith:2025:YD2R7N272W54J57H7HS2VUB2EH

not attested not anchored not stored refs pending

Private Geometric Median in Nearly-Linear Time

Chutong Yang, Daogao Liu, Kevin Tian, Syamantak Kumar

arxiv:2505.20189 v1 · 2025-05-26 · cs.DS · cs.CR · cs.LG · 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{YD2R7N272W54J57H7HS2VUB2EH}

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	2026-07-05T11:09:53.932769Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c0f51fb75fd5bbc4f7e7f9e5aad03a21e0818b9fd96eb6dc58eb3e00cc7c3ee8

Aliases

arxiv: 2505.20189 · arxiv_version: 2505.20189v1 · doi: 10.48550/arxiv.2505.20189 · pith_short_12: YD2R7N272W54 · pith_short_16: YD2R7N272W54J57H · pith_short_8: YD2R7N27

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/YD2R7N272W54J57H7HS2VUB2EH \
  | 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: c0f51fb75fd5bbc4f7e7f9e5aad03a21e0818b9fd96eb6dc58eb3e00cc7c3ee8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "996017663d889179f131b02fc951137601cfe252ddbdc3804fa952f948013dbb",
    "cross_cats_sorted": [
      "cs.CR",
      "cs.LG",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2025-05-26T16:32:49Z",
    "title_canon_sha256": "02f70099a3c34c9e760f474667ceb83ca75ff95cb9eadc29acec562a07a3194b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.20189",
    "kind": "arxiv",
    "version": 1
  }
}