Pith Number

pith:CH4ESEKT

pith:2015:CH4ESEKTDI4KWEVZJFFEU73CEJ

not attested not anchored not stored refs pending

Predicting Grades

Jie Xu, Mihaela van der Schaar, Onur Atan, Yannick Meier

arxiv:1508.03865 v2 · 2015-08-16 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CH4ESEKTDI4KWEVZJFFEU73CEJ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:18:54.284989Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

11f84911531a38ab12b9494a4a7f62224a3d7245edc34f7199084dccbf32dd87

Aliases

arxiv: 1508.03865 · arxiv_version: 1508.03865v2 · doi: 10.48550/arxiv.1508.03865 · pith_short_12: CH4ESEKTDI4K · pith_short_16: CH4ESEKTDI4KWEVZ · pith_short_8: CH4ESEKT

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/CH4ESEKTDI4KWEVZJFFEU73CEJ \
  | 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: 11f84911531a38ab12b9494a4a7f62224a3d7245edc34f7199084dccbf32dd87

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd6da023f70853e54fb43d4c37f76b6e141598dfda383a1546bb4ab49e315d13",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2015-08-16T20:53:09Z",
    "title_canon_sha256": "4bcc7f6481ebc350a034857913ed22f0bb8e7b4a7b0c89ec9f9c1a3f432759f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.03865",
    "kind": "arxiv",
    "version": 2
  }
}