Pith Number

pith:7NXWARU2

pith:2025:7NXWARU2YCEXI53YMUBP25RSEH

not attested not anchored not stored refs pending

Path Signatures for Feature Extraction. An Introduction to the Mathematics Underpinning an Efficient Machine Learning Technique

Stephan Sturm

arxiv:2506.01815 v1 · 2025-06-02 · cs.LG · math.PR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7NXWARU2YCEXI53YMUBP25RSEH}

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	2026-07-05T11:14:19.800291Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb6f60469ac0897477786502fd763221e855214d5be81544797451437881001b

Aliases

arxiv: 2506.01815 · arxiv_version: 2506.01815v1 · doi: 10.48550/arxiv.2506.01815 · pith_short_12: 7NXWARU2YCEX · pith_short_16: 7NXWARU2YCEXI53Y · pith_short_8: 7NXWARU2

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/7NXWARU2YCEXI53YMUBP25RSEH \
  | 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: fb6f60469ac0897477786502fd763221e855214d5be81544797451437881001b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "42dc2b0f34a4e35abc1e0b5d6fb0de9c84df3b7e9e4ab903a3882dca3b425032",
    "cross_cats_sorted": [
      "math.PR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-06-02T15:55:26Z",
    "title_canon_sha256": "07596b55b2573e09d6a98fa9e34d28762f69463231240d3106fd9c159b96a1cd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.01815",
    "kind": "arxiv",
    "version": 1
  }
}