Pith Number

pith:3XTZBI2R

pith:2019:3XTZBI2RRH7WR5S46QNY5O2F7U

not attested not anchored not stored refs pending

Hadamard Matrix Guided Online Hashing

Hong Liu, Mingbao Lin, Qi Tian, Rongrong Ji, Shen Chen, Xiaoshuai Sun

arxiv:1905.04454 v3 · 2019-05-11 · cs.IR · 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{3XTZBI2RRH7WR5S46QNY5O2F7U}

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	2026-07-05T00:35:00.604556Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dde790a35189ff68f65cf41b8ebb45fd193d6384728b86fe72c85b56e97ccf70

Aliases

arxiv: 1905.04454 · arxiv_version: 1905.04454v3 · doi: 10.48550/arxiv.1905.04454 · pith_short_12: 3XTZBI2RRH7W · pith_short_16: 3XTZBI2RRH7WR5S4 · pith_short_8: 3XTZBI2R

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/3XTZBI2RRH7WR5S46QNY5O2F7U \
  | 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: dde790a35189ff68f65cf41b8ebb45fd193d6384728b86fe72c85b56e97ccf70

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9a4a148134d87ce80c8602013cc7b25177f48fc6442c75d50cd1f98e2f42c83",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2019-05-11T05:53:31Z",
    "title_canon_sha256": "b525b4a639c4009086f1a04ec079a00b1ac0c22a7c334815fead931ca975f922"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.04454",
    "kind": "arxiv",
    "version": 3
  }
}