Pith Number

pith:DOJGN76T

pith:2018:DOJGN76T3GTKVQ7KBUL64KSCTJ

not attested not anchored not stored refs pending

A brief introduction to the Grey Machine Learning

Xin Ma

arxiv:1805.01745 v2 · 2018-05-04 · stat.ML · 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{DOJGN76T3GTKVQ7KBUL64KSCTJ}

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	2026-05-17T23:42:53.868937Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1b9266ffd3d9a6aac3ea0d17ee2a429a44a12f542cdc5f52f501e9ca9b6ac823

Aliases

arxiv: 1805.01745 · arxiv_version: 1805.01745v2 · doi: 10.48550/arxiv.1805.01745 · pith_short_12: DOJGN76T3GTK · pith_short_16: DOJGN76T3GTKVQ7K · pith_short_8: DOJGN76T

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/DOJGN76T3GTKVQ7KBUL64KSCTJ \
  | 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: 1b9266ffd3d9a6aac3ea0d17ee2a429a44a12f542cdc5f52f501e9ca9b6ac823

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62cc9fc001500efd95184ef96f85bd35f33aa73386a7bad5fd8c1a49f6966311",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2018-05-04T12:53:05Z",
    "title_canon_sha256": "087faa5438a8d336921929ae4169c8399fa9506cc1763e214a8c4b67c0d07f6a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.01745",
    "kind": "arxiv",
    "version": 2
  }
}