Pith Number

pith:WVHNE4GI

pith:2018:WVHNE4GI7W5BVLDDXBUUY7YNYW

not attested not anchored not stored refs pending

An M* Proxy for Sparse Recovery Performance

Alexandre d'Aspremont, Mathieu Barr\'e

arxiv:1810.02748 v2 · 2018-10-05 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WVHNE4GI7W5BVLDDXBUUY7YNYW}

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	2026-07-05T01:59:08.317690Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b54ed270c8fdba1aac63b8694c7f0dc5b07e7306f991c5cb24be23934bc5d58b

Aliases

arxiv: 1810.02748 · arxiv_version: 1810.02748v2 · doi: 10.48550/arxiv.1810.02748 · pith_short_12: WVHNE4GI7W5B · pith_short_16: WVHNE4GI7W5BVLDD · pith_short_8: WVHNE4GI

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/WVHNE4GI7W5BVLDDXBUUY7YNYW \
  | 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: b54ed270c8fdba1aac63b8694c7f0dc5b07e7306f991c5cb24be23934bc5d58b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f22205fe780a0c537b6a496d99768dea4d29ecccf3b45e2591a241fb5aef803b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-10-05T15:30:59Z",
    "title_canon_sha256": "98550fd25326e603a93dc2b6b4417db14baad4e0cab6d027b035ed0ec314ff5e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.02748",
    "kind": "arxiv",
    "version": 2
  }
}