Pith Number

pith:KNA2WXTW

pith:2022:KNA2WXTWFZ2NFSQLDBOKZRKOTV

not attested not anchored not stored refs pending

Learning to predict test effectiveness

Morteza Zakeri-Nasrabadi, Saeed Parsa

arxiv:2208.09623 v1 · 2022-08-20 · cs.SE · 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{KNA2WXTWFZ2NFSQLDBOKZRKOTV}

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	2026-07-05T04:50:20.187873Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5341ab5e762e74d2ca0b185cacc54e9d5b9c093e8fc8feb6419d71fd8f78da28

Aliases

arxiv: 2208.09623 · arxiv_version: 2208.09623v1 · doi: 10.48550/arxiv.2208.09623 · pith_short_12: KNA2WXTWFZ2N · pith_short_16: KNA2WXTWFZ2NFSQL · pith_short_8: KNA2WXTW

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/KNA2WXTWFZ2NFSQLDBOKZRKOTV \
  | 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: 5341ab5e762e74d2ca0b185cacc54e9d5b9c093e8fc8feb6419d71fd8f78da28

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cc7271495f04e41d24892035fc9f0903cbce96983535ddfe43fb6e868fc80688",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2022-08-20T07:26:59Z",
    "title_canon_sha256": "1f5d9a41197a4e485466b28e0a55e845dc9e4c6ac4d608dafd21c14f298712a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2208.09623",
    "kind": "arxiv",
    "version": 1
  }
}