Pith Number

pith:OIFPWYDK

pith:2010:OIFPWYDKGXYZPGLYBDV2PXAR7I

not attested not anchored not stored refs pending

Distributed Basis Pursuit

Jo\~ao F. C. Mota, Jo\~ao M. F. Xavier, Markus P\"uschel, Pedro M. Q. Aguiar

arxiv:1009.1128 v3 · 2010-09-06 · math.OC · cs.IT · cs.SY · 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{OIFPWYDKGXYZPGLYBDV2PXAR7I}

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	2026-05-18T04:00:13.796808Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

720afb606a35f197997808eba7dc11fa19cd7fe1d7ef8eceaa8001fd8aec7e72

Aliases

arxiv: 1009.1128 · arxiv_version: 1009.1128v3 · doi: 10.48550/arxiv.1009.1128 · pith_short_12: OIFPWYDKGXYZ · pith_short_16: OIFPWYDKGXYZPGLY · pith_short_8: OIFPWYDK

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/OIFPWYDKGXYZPGLYBDV2PXAR7I \
  | 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: 720afb606a35f197997808eba7dc11fa19cd7fe1d7ef8eceaa8001fd8aec7e72

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "08be21ad7053041a9ae6cbc20775cf5e2e5c183bd49f778f49a17e0e0c85decd",
    "cross_cats_sorted": [
      "cs.IT",
      "cs.SY",
      "math.IT"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2010-09-06T19:09:50Z",
    "title_canon_sha256": "ed126e961531209d1a167c33225f611f57f4e55903faa89084a4ad1b952f7820"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.1128",
    "kind": "arxiv",
    "version": 3
  }
}