Pith Number

pith:EKHN7JTL

pith:2018:EKHN7JTLC4YIAAXXMRYT6VIFZ5

not attested not anchored not stored refs pending

Batch Sparse Recovery, or How to Leverage the Average Sparsity

Alexandr Andoni, Eric Price, Lior Kamma, Robert Krauthgamer

arxiv:1807.08478 v1 · 2018-07-23 · 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{EKHN7JTLC4YIAAXXMRYT6VIFZ5}

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	2026-05-18T00:10:07.881487Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

228edfa66b17308002f764713f5505cf673f772d8dec3209ce44d4ec5505928c

Aliases

arxiv: 1807.08478 · arxiv_version: 1807.08478v1 · doi: 10.48550/arxiv.1807.08478 · pith_short_12: EKHN7JTLC4YI · pith_short_16: EKHN7JTLC4YIAAXX · pith_short_8: EKHN7JTL

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/EKHN7JTLC4YIAAXXMRYT6VIFZ5 \
  | 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: 228edfa66b17308002f764713f5505cf673f772d8dec3209ce44d4ec5505928c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7264286fbc8a199a981af8e17e06017a977e4e8d0634f260908726eaf7b06173",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-07-23T08:31:23Z",
    "title_canon_sha256": "22f86b0440ff4c96b2a69d99f209392dbb5bba15bc2390b17b223a73df40d3b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.08478",
    "kind": "arxiv",
    "version": 1
  }
}