Pith Number

pith:GJBB63VF

pith:2017:GJBB63VF2HZYVWPX4RWSMB4LLK

not attested not anchored not stored refs pending

A note on quickly sampling a sparse matrix with low rank expectation

Jun Tao, Karl Rohe, Norbert Binkiewicz, Xintian Han

arxiv:1703.02998 v1 · 2017-03-08 · stat.CO

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GJBB63VF2HZYVWPX4RWSMB4LLK}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T00:49:05.094607Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

32421f6ea5d1f38ad9f7e46d26078b5ab5d72b8eab0c26438aebe4cccc8d0f16

Aliases

arxiv: 1703.02998 · arxiv_version: 1703.02998v1 · doi: 10.48550/arxiv.1703.02998 · pith_short_12: GJBB63VF2HZY · pith_short_16: GJBB63VF2HZYVWPX · pith_short_8: GJBB63VF

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/GJBB63VF2HZYVWPX4RWSMB4LLK \
  | 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: 32421f6ea5d1f38ad9f7e46d26078b5ab5d72b8eab0c26438aebe4cccc8d0f16

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c6bd4f1bc4e73641e541962dc89d34b90ab25432c1a304918f98974fee740aee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.CO",
    "submitted_at": "2017-03-08T19:22:11Z",
    "title_canon_sha256": "2c42ad3db179a457906da0104eaf7e50da77b7d0d1acef5f816fd2db9ba50e7c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.02998",
    "kind": "arxiv",
    "version": 1
  }
}