Pith Number

pith:HPEMPRRJ

pith:2010:HPEMPRRJEXMZAXRATDSTCPF5QM

not attested not anchored not stored refs pending

Rank Awareness in Joint Sparse Recovery

Mike E. Davies, Yonina C. Eldar

arxiv:1004.4529 v1 · 2010-04-26 · 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{HPEMPRRJEXMZAXRATDSTCPF5QM}

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	2026-05-18T02:24:16.164480Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3bc8c7c62925d9905e2098e5313cbd83217cd9365e05ab87e788f6ec2671213a

Aliases

arxiv: 1004.4529 · arxiv_version: 1004.4529v1 · doi: 10.48550/arxiv.1004.4529 · pith_short_12: HPEMPRRJEXMZ · pith_short_16: HPEMPRRJEXMZAXRA · pith_short_8: HPEMPRRJ

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/HPEMPRRJEXMZAXRATDSTCPF5QM \
  | 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: 3bc8c7c62925d9905e2098e5313cbd83217cd9365e05ab87e788f6ec2671213a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "887528dd0f12249b3f6d2bf8cfc90894890c6a13b9145a084cd599a529468ce6",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2010-04-26T14:02:32Z",
    "title_canon_sha256": "815db11b9bb13d2e3d1d221790458e012b99c8a5c656bb651daf303fbb39b349"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.4529",
    "kind": "arxiv",
    "version": 1
  }
}