Pith Number

pith:WMXKLCBO

pith:2025:WMXKLCBOW5KUX3FBR33QV4OUR3

not attested not anchored not stored refs pending

Spectral Survival Analysis

Chengzhi Shi, Stratis Ioannidis

arxiv:2505.22641 v1 · 2025-05-28 · 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{WMXKLCBOW5KUX3FBR33QV4OUR3}

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	2026-07-05T11:11:28.293432Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b32ea5882eb7554beca18ef70af1d48eebd7307a392ec42cd8ad40ce4af9b888

Aliases

arxiv: 2505.22641 · arxiv_version: 2505.22641v1 · doi: 10.48550/arxiv.2505.22641 · pith_short_12: WMXKLCBOW5KU · pith_short_16: WMXKLCBOW5KUX3FB · pith_short_8: WMXKLCBO

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/WMXKLCBOW5KUX3FBR33QV4OUR3 \
  | 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: b32ea5882eb7554beca18ef70af1d48eebd7307a392ec42cd8ad40ce4af9b888

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21cb9379cd3164f6f6095e154a7b244a9839527146e44359c54704f33ac7d24c",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-05-28T17:54:39Z",
    "title_canon_sha256": "fbbe3ea7cfb2c15ce15ea57c7280024ee51c0f1b218af93a6f8dbc34953e83fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.22641",
    "kind": "arxiv",
    "version": 1
  }
}