Pith Number

pith:CMJC2B5Q

pith:2017:CMJC2B5QXVAQ2M3EI6P346MAT2

not attested not anchored not stored refs pending

Detecting changes in slope with an $L_0$ penalty

Adam Letchford, Paul Fearnhead, Robert Maidstone

arxiv:1701.01672 v2 · 2017-01-06 · stat.CO · stat.ME · 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{CMJC2B5QXVAQ2M3EI6P346MAT2}

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	2026-05-18T00:51:29.930764Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13122d07b0bd410d3364479fbe79809e9de5e3369609ddb0eb6cccbbc36927c1

Aliases

arxiv: 1701.01672 · arxiv_version: 1701.01672v2 · doi: 10.48550/arxiv.1701.01672 · pith_short_12: CMJC2B5QXVAQ · pith_short_16: CMJC2B5QXVAQ2M3E · pith_short_8: CMJC2B5Q

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/CMJC2B5QXVAQ2M3EI6P346MAT2 \
  | 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: 13122d07b0bd410d3364479fbe79809e9de5e3369609ddb0eb6cccbbc36927c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "56e5d83ace1fcf65486e89e3742c197be6e012e547bce6145ff85c8b724e2e4b",
    "cross_cats_sorted": [
      "stat.ME",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.CO",
    "submitted_at": "2017-01-06T15:52:45Z",
    "title_canon_sha256": "413182f9d988dd5bb9b4a1fb3f8ed4929fa9e3f180d749612c8e6be2af9ea1cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.01672",
    "kind": "arxiv",
    "version": 2
  }
}