Pith Number

pith:4AMQWVBJ

pith:2018:4AMQWVBJ5RWTDXWYYCPIEZUKMB

not attested not anchored not stored refs pending

Deterministic Stretchy Regression

Kar-Ann Toh, Lei Sun, Zhiping Lin

arxiv:1806.03404 v1 · 2018-06-09 · 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{4AMQWVBJ5RWTDXWYYCPIEZUKMB}

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	2026-05-18T00:13:43.488589Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0190b5429ec6d31ded8c09e82668a605e6ce55110b58a5e59e0295271c7ebdf

Aliases

arxiv: 1806.03404 · arxiv_version: 1806.03404v1 · doi: 10.48550/arxiv.1806.03404 · pith_short_12: 4AMQWVBJ5RWT · pith_short_16: 4AMQWVBJ5RWTDXWY · pith_short_8: 4AMQWVBJ

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/4AMQWVBJ5RWTDXWYYCPIEZUKMB \
  | 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: e0190b5429ec6d31ded8c09e82668a605e6ce55110b58a5e59e0295271c7ebdf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c0e0178da1901b40964e3089cf1a18a683ac732691f74e5ea8313c1af60ca35b",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2018-06-09T03:22:53Z",
    "title_canon_sha256": "701d0ae45a399d21c74b89c1c3218e91ed0e07abfa7ec70d691694c0dbf60206"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.03404",
    "kind": "arxiv",
    "version": 1
  }
}