Pith Number

pith:6JY4D432

pith:2017:6JY4D4325X3L5WZZ2OVCYDSMRD

not attested not anchored not stored refs pending

Sample Efficient Estimation and Recovery in Sparse FFT via Isolation on Average

Michael Kapralov

arxiv:1708.04544 v2 · 2017-08-15 · 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{6JY4D4325X3L5WZZ2OVCYDSMRD}

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	2026-05-18T00:37:54.157152Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f271c1f37aedf6bedb39d3aa2c0e4c88f2b1666fe2f996b7bf2277d0c5cefd7d

Aliases

arxiv: 1708.04544 · arxiv_version: 1708.04544v2 · doi: 10.48550/arxiv.1708.04544 · pith_short_12: 6JY4D4325X3L · pith_short_16: 6JY4D4325X3L5WZZ · pith_short_8: 6JY4D432

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/6JY4D4325X3L5WZZ2OVCYDSMRD \
  | 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: f271c1f37aedf6bedb39d3aa2c0e4c88f2b1666fe2f996b7bf2277d0c5cefd7d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0864fe85fc392d66e6c34b93c90e13d229ecfde1a91e03f093a71a4fbacc0f21",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-08-15T15:11:18Z",
    "title_canon_sha256": "e105243b3ab9e9c8358a69f10f1f73f74ab8f093e4e77d99fd479ce55784ff3c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.04544",
    "kind": "arxiv",
    "version": 2
  }
}