Pith Number

pith:3QGL43OO

pith:2020:3QGL43OOXU5BRZD4TXBTBRUQ3L

not attested not anchored not stored refs pending

Depth Self-Optimized Learning Toward Data Science

Ziqi Zhang

arxiv:2011.02842 v2 · 2020-11-02 · 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{3QGL43OOXU5BRZD4TXBTBRUQ3L}

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	2026-07-05T02:05:45.041899Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dc0cbe6dcebd3a18e47c9dc330c690dacc315a212be253dad759905f782496d1

Aliases

arxiv: 2011.02842 · arxiv_version: 2011.02842v2 · doi: 10.48550/arxiv.2011.02842 · pith_short_12: 3QGL43OOXU5B · pith_short_16: 3QGL43OOXU5BRZD4 · pith_short_8: 3QGL43OO

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/3QGL43OOXU5BRZD4TXBTBRUQ3L \
  | 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: dc0cbe6dcebd3a18e47c9dc330c690dacc315a212be253dad759905f782496d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c1fe22eb36b9ba5208b206ae0da1e7f02f0ae5c3d077717af7e0ebc597bb64a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2020-11-02T15:43:49Z",
    "title_canon_sha256": "f5be0d244bbfc5f57833ea32e091aaa7197cec7b2baa8958132f0627741b396e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2011.02842",
    "kind": "arxiv",
    "version": 2
  }
}