Pith Number

pith:4LKD2G6B

pith:2019:4LKD2G6B57WELJHNO5AIO6NICK

not attested not anchored not stored refs pending

Dimension-independent Sparse Fourier Transform

Ameya Velingker, Amir Zandieh, Michael Kapralov

arxiv:1902.10633 v1 · 2019-02-27 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4LKD2G6B57WELJHNO5AIO6NICK}

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	2026-05-17T23:52:30.347779Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2d43d1bc1efec45a4ed77408779a8128f7f9281658d52a203d223f2e45ebb5c

Aliases

arxiv: 1902.10633 · arxiv_version: 1902.10633v1 · doi: 10.48550/arxiv.1902.10633 · pith_short_12: 4LKD2G6B57WE · pith_short_16: 4LKD2G6B57WELJHN · pith_short_8: 4LKD2G6B

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/4LKD2G6B57WELJHNO5AIO6NICK \
  | 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: e2d43d1bc1efec45a4ed77408779a8128f7f9281658d52a203d223f2e45ebb5c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0a484fea4d31535e75ea666956994ce1805a260deab1c018a03e1782214fb352",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2019-02-27T16:53:56Z",
    "title_canon_sha256": "cdccd387e396a9cfb4bda1ea7cb0ad891736398a08ca45b8abdff708aebf22ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.10633",
    "kind": "arxiv",
    "version": 1
  }
}