Pith Number

pith:A2IIL7CL

pith:2025:A2IIL7CLXQNRU5W4SWD654OVJK

not attested not anchored not stored refs pending

Infinite hierarchical contrastive clustering for personal digital envirotyping

Jason A. Oliver, Joseph McClernon, Matthew M. Engelhard, Ya-Yun Huang

arxiv:2505.15022 v1 · 2025-05-21 · 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{A2IIL7CLXQNRU5W4SWD654OVJK}

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	2026-07-05T11:06:39.396961Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

069085fc4bbc1b1a76dc9587eef1d54a9ca6538a61435548c89b008d39c42143

Aliases

arxiv: 2505.15022 · arxiv_version: 2505.15022v1 · doi: 10.48550/arxiv.2505.15022 · pith_short_12: A2IIL7CLXQNR · pith_short_16: A2IIL7CLXQNRU5W4 · pith_short_8: A2IIL7CL

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/A2IIL7CLXQNRU5W4SWD654OVJK \
  | 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: 069085fc4bbc1b1a76dc9587eef1d54a9ca6538a61435548c89b008d39c42143

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c05a24ac381c2364d3506c3d29a9f9810317b3d39031bb0489ac2a1b7860c664",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2025-05-21T02:11:23Z",
    "title_canon_sha256": "1d23525981730a731f723573f02e3068a12a90a050651d143f1b30bd18c2ab3f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.15022",
    "kind": "arxiv",
    "version": 1
  }
}