Pith Number

pith:XI526ZBJ

pith:2018:XI526ZBJ64JLPWIUMHO5HSUEAQ

not attested not anchored not stored refs pending

Sparse Recovery over Graph Incidence Matrices

Daniel P. Robinson, Enrique Mallada, M. Devrim Kaba, Mengnan Zhao, Ren\'e Vidal

arxiv:1803.09631 v2 · 2018-03-26 · cs.IT · cs.SI · eess.SP · 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{XI526ZBJ64JLPWIUMHO5HSUEAQ}

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	2026-05-17T23:49:33.626449Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba3baf6429f712b7d91461ddd3ca840404974ce2c33adfe349c15ce2b343cfdf

Aliases

arxiv: 1803.09631 · arxiv_version: 1803.09631v2 · doi: 10.48550/arxiv.1803.09631 · pith_short_12: XI526ZBJ64JL · pith_short_16: XI526ZBJ64JLPWIU · pith_short_8: XI526ZBJ

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/XI526ZBJ64JLPWIUMHO5HSUEAQ \
  | 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: ba3baf6429f712b7d91461ddd3ca840404974ce2c33adfe349c15ce2b343cfdf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d80d0b8f4e775a142ba5cba96de8ae81be82df657548aaf608846f22b7844a2",
    "cross_cats_sorted": [
      "cs.SI",
      "eess.SP",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-03-26T14:45:37Z",
    "title_canon_sha256": "4ee727bcbef5a76aa991620bc69fb6e8c2c8b72fdd5981866008d94529c57a5c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.09631",
    "kind": "arxiv",
    "version": 2
  }
}