Pith Number

pith:PN5IZPBA

pith:2021:PN5IZPBAPWPGLLKAW4JUSLXDRS

not attested not anchored not stored refs pending

Fixes That Fail: Self-Defeating Improvements in Machine-Learning Systems

Awni Hannun, Chuan Guo, Laurens van der Maaten, Ruihan Wu

arxiv:2103.11766 v2 · 2021-03-22 · 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{PN5IZPBAPWPGLLKAW4JUSLXDRS}

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	2026-07-05T02:44:56.227289Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b7a8cbc207d9e65ad40b713492ee38ca6b6fb9362a78afd048fdfcfe6613ba3

Aliases

arxiv: 2103.11766 · arxiv_version: 2103.11766v2 · doi: 10.48550/arxiv.2103.11766 · pith_short_12: PN5IZPBAPWPG · pith_short_16: PN5IZPBAPWPGLLKA · pith_short_8: PN5IZPBA

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/PN5IZPBAPWPGLLKAW4JUSLXDRS \
  | 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: 7b7a8cbc207d9e65ad40b713492ee38ca6b6fb9362a78afd048fdfcfe6613ba3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dadd12f1b0d2646176c1ea3bf9f17229fc7f09c28dd1d71eaeac3800673f1f80",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-03-22T12:29:10Z",
    "title_canon_sha256": "370db8cabbf4953025da15e084112655a38c40416648936d59b2f4374388c3e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.11766",
    "kind": "arxiv",
    "version": 2
  }
}