Pith Number

pith:PT4RA5AP

pith:2019:PT4RA5APVQCX4ET64S25O4D7KD

not attested not anchored not stored refs pending

Iterative Normalization: Beyond Standardization towards Efficient Whitening

Fan Zhu, Lei Huang, Li Liu, Ling Shao, Yi Zhou

arxiv:1904.03441 v1 · 2019-04-06 · cs.CV · 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{PT4RA5APVQCX4ET64S25O4D7KD}

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	2026-05-17T23:49:13.387629Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7cf910740fac057e127ee4b5d7707f50c9568db84f65316b7d8bc2b1f3813e27

Aliases

arxiv: 1904.03441 · arxiv_version: 1904.03441v1 · doi: 10.48550/arxiv.1904.03441 · pith_short_12: PT4RA5APVQCX · pith_short_16: PT4RA5APVQCX4ET6 · pith_short_8: PT4RA5AP

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/PT4RA5APVQCX4ET64S25O4D7KD \
  | 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: 7cf910740fac057e127ee4b5d7707f50c9568db84f65316b7d8bc2b1f3813e27

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "616c8a71ba505d41a3e71e3df8d0c0db3ef35a4dd1deb8b11af7b4991e90cd60",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-04-06T13:10:20Z",
    "title_canon_sha256": "ebb33ddfe73fb04edb1fd8c302cf06aba66a6bda2f196a35f8aab619fcda2625"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.03441",
    "kind": "arxiv",
    "version": 1
  }
}