Pith Number

pith:H4D3YHVA

pith:2011:H4D3YHVASQSDWSACPVJNXMOWE3

not attested not anchored not stored refs pending

On the error of estimating the sparsest solution of underdetermined linear systems

Christian Jutten, Hosein Mohimani, Massoud Babaie-Zadeh

arxiv:1112.0789 v1 · 2011-12-04 · 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{H4D3YHVASQSDWSACPVJNXMOWE3}

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	2026-05-18T00:58:18.584106Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f07bc1ea094243b48027d52dbb1d626d5e0e8881b6e99cd36375469c2998836

Aliases

arxiv: 1112.0789 · arxiv_version: 1112.0789v1 · doi: 10.48550/arxiv.1112.0789 · pith_short_12: H4D3YHVASQSD · pith_short_16: H4D3YHVASQSDWSAC · pith_short_8: H4D3YHVA

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/H4D3YHVASQSDWSACPVJNXMOWE3 \
  | 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: 3f07bc1ea094243b48027d52dbb1d626d5e0e8881b6e99cd36375469c2998836

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7251e26afcb9786fd3807bae02add24e3bba00eca3c56fe939d9efe8440b851d",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2011-12-04T19:44:16Z",
    "title_canon_sha256": "155470b158b6c4a4bfc9675ae70afbbfa6f6d3b7c3d50c1852d7260e96dadcba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.0789",
    "kind": "arxiv",
    "version": 1
  }
}