Pith Number

pith:MTVFGRNR

pith:2026:MTVFGRNRO5TBSUFRG3X3JXBJYR

not attested not anchored not stored refs pending

focus and focus-cpt: Fast Online Changepoint Detection in R and Python

Gaetano Romano, Guillem Rigaill, Idris A. Eckley, Kes Ward, Paul Fearnhead, Vincent Runge, Yuntang Fan

arxiv:2607.19961 v1 · 2026-07-22 · stat.ME

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MTVFGRNRO5TBSUFRG3X3JXBJYR}

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	2026-07-23T01:24:52.251657Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64ea5345b177661950b136efb4dc29c47bdf67b7cd8a4ea52c753b95be67ec68

Aliases

arxiv: 2607.19961 · arxiv_version: 2607.19961v1 · doi: 10.48550/arxiv.2607.19961 · pith_short_12: MTVFGRNRO5TB · pith_short_16: MTVFGRNRO5TBSUFR · pith_short_8: MTVFGRNR

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/MTVFGRNRO5TBSUFRG3X3JXBJYR \
  | 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: 64ea5345b177661950b136efb4dc29c47bdf67b7cd8a4ea52c753b95be67ec68

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a12dc550270c4f6c68a6097999b7e09348deff1b5f5496566504c8f1a47c6fdf",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2026-07-22T09:40:17Z",
    "title_canon_sha256": "3a6d1c4bea7d66108f80afaa13e1f24a51cf53877a4fb49bbd2edec372113585"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.19961",
    "kind": "arxiv",
    "version": 1
  }
}