Pith Number

pith:OB4RN6X4

pith:2019:OB4RN6X43FNEVDO3FCJKYWKYUA

not attested not anchored not stored refs pending

Substra: a framework for privacy-preserving, traceable and collaborative Machine Learning

Camille Marini, Mathieu N Galtier

arxiv:1910.11567 v1 · 2019-10-25 · cs.CR · 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{OB4RN6X43FNEVDO3FCJKYWKYUA}

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	2026-07-05T00:14:47.621368Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

707916fafcd95a4a8ddb2892ac5958a029d619c9730d51804b7518422f54b1c6

Aliases

arxiv: 1910.11567 · arxiv_version: 1910.11567v1 · doi: 10.48550/arxiv.1910.11567 · pith_short_12: OB4RN6X43FNE · pith_short_16: OB4RN6X43FNEVDO3 · pith_short_8: OB4RN6X4

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/OB4RN6X43FNEVDO3FCJKYWKYUA \
  | 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: 707916fafcd95a4a8ddb2892ac5958a029d619c9730d51804b7518422f54b1c6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3ae3e50bf2a271d46487c17eceb3f15df0842ca31f23f611f0a572787924e62b",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2019-10-25T08:25:03Z",
    "title_canon_sha256": "0863924f955427d2a2cd98b9ba6931ecb4a178b11a9196b324a71bab8f6c5ef6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.11567",
    "kind": "arxiv",
    "version": 1
  }
}