Pith Number

pith:PLZMO22E

pith:2022:PLZMO22EBTVG2K6UEMHCFNFFLA

not attested not anchored not stored refs pending

Predicting Out-of-Distribution Error with the Projection Norm

Alexander Wei, Jacob Steinhardt, Yaodong Yu, Yi Ma, Zitong Yang

arxiv:2202.05834 v1 · 2022-02-11 · cs.LG · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PLZMO22EBTVG2K6UEMHCFNFFLA}

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	2026-07-05T03:56:12.757193Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7af2c76b440cea6d2bd4230e22b4a5582307715d4d39d2eb54437f38334cfd44

Aliases

arxiv: 2202.05834 · arxiv_version: 2202.05834v1 · doi: 10.48550/arxiv.2202.05834 · pith_short_12: PLZMO22EBTVG · pith_short_16: PLZMO22EBTVG2K6U · pith_short_8: PLZMO22E

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/PLZMO22EBTVG2K6UEMHCFNFFLA \
  | 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: 7af2c76b440cea6d2bd4230e22b4a5582307715d4d39d2eb54437f38334cfd44

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d99095d327c9cbe3a0b49f8d02a5bd013b4717228cb8ce3951cee98fa8be755",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2022-02-11T18:58:21Z",
    "title_canon_sha256": "1f2bdd54a9679b1a1493515f23321f565309488e84c1dae114d2d3ec20a9887b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2202.05834",
    "kind": "arxiv",
    "version": 1
  }
}