Pith Number

pith:H56ZSLVT

pith:2015:H56ZSLVTGHGRHEXQCTKQU57YK3

not attested not anchored not stored refs pending

Nonparametric Simultaneous Sparse Recovery: an Application to Source Localization

Esa Ollila

arxiv:1502.02441 v2 · 2015-02-09 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H56ZSLVTGHGRHEXQCTKQU57YK3}

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	2026-05-18T01:55:32.837566Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f7d992eb331cd1392f014d50a77f856e96bf75b7493dc52344b042c3156836f

Aliases

arxiv: 1502.02441 · arxiv_version: 1502.02441v2 · doi: 10.48550/arxiv.1502.02441 · pith_short_12: H56ZSLVTGHGR · pith_short_16: H56ZSLVTGHGRHEXQ · pith_short_8: H56ZSLVT

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/H56ZSLVTGHGRHEXQCTKQU57YK3 \
  | 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: 3f7d992eb331cd1392f014d50a77f856e96bf75b7493dc52344b042c3156836f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15d001361c78e4ec6ec47d6f0317be2d22836f7d8a7be3db508039c8d3acb1b9",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-02-09T11:20:46Z",
    "title_canon_sha256": "73a4adf17c4b5fa54d494f12fbc458bab5034a2d39bf799a3575c1c1d120a8ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.02441",
    "kind": "arxiv",
    "version": 2
  }
}