Pith Number

pith:Z2DZ54JY

pith:2023:Z2DZ54JYVIWSTNK7HMM4YXZRJD

not attested not anchored not stored refs pending

Hierarchical Optimization-Derived Learning

Jin Zhang, Risheng Liu, Shangzhi Zeng, Xuan Liu, Yixuan Zhang

arxiv:2302.05587 v2 · 2023-02-11 · 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{Z2DZ54JYVIWSTNK7HMM4YXZRJD}

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	2026-07-05T06:49:59.209532Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ce879ef138aa2d29b55f3b19cc5f3148ccc800207def562df154636e27feff79

Aliases

arxiv: 2302.05587 · arxiv_version: 2302.05587v2 · doi: 10.48550/arxiv.2302.05587 · pith_short_12: Z2DZ54JYVIWS · pith_short_16: Z2DZ54JYVIWSTNK7 · pith_short_8: Z2DZ54JY

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/Z2DZ54JYVIWSTNK7HMM4YXZRJD \
  | 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: ce879ef138aa2d29b55f3b19cc5f3148ccc800207def562df154636e27feff79

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c2190aec404314e0a41ae69b97a1124316b74bbeddd53321a755e63c367e8960",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2023-02-11T03:35:13Z",
    "title_canon_sha256": "227f441acf208701a9bb58987d61ed8d9c730f298834c98e8d36041a08e1df7b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2302.05587",
    "kind": "arxiv",
    "version": 2
  }
}