Pith Number

pith:ZYSCY7WO

pith:2021:ZYSCY7WOHTMWK7F7Y5JCD4HDV3

not attested not anchored not stored refs pending

HYDRA: Hypergradient Data Relevance Analysis for Interpreting Deep Neural Networks

Boyang Li, Chunyan Miao, Han Yu, Pengcheng Wu, Yuanyuan Chen

arxiv:2102.02515 v7 · 2021-02-04 · 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{ZYSCY7WOHTMWK7F7Y5JCD4HDV3}

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	2026-07-05T10:54:28.497964Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ce242c7ece3cd9657cbfc75221f0e3aed7121084525e359cda11b97709611835

Aliases

arxiv: 2102.02515 · arxiv_version: 2102.02515v7 · doi: 10.48550/arxiv.2102.02515 · pith_short_12: ZYSCY7WOHTMW · pith_short_16: ZYSCY7WOHTMWK7F7 · pith_short_8: ZYSCY7WO

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/ZYSCY7WOHTMWK7F7Y5JCD4HDV3 \
  | 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: ce242c7ece3cd9657cbfc75221f0e3aed7121084525e359cda11b97709611835

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d938a3ac643a7490e7ffcce9d28a6766fa9069f5eefd63af9a9fca32c489d64",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-02-04T10:00:13Z",
    "title_canon_sha256": "dc1d41d49fb07b2ebb99cba36102c43f0eebe9f1848772dc655e0807390e3c73"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.02515",
    "kind": "arxiv",
    "version": 7
  }
}