Pith Number

pith:DWRAR7X2

pith:2013:DWRAR7X2PFISDDV3YEXX4CRFUZ

not attested not anchored not stored refs pending

Computing and Analyzing Recoverable Supports for Sparse Reconstruction

Christian Kruschel, Dirk A. Lorenz

arxiv:1309.2460 v1 · 2013-09-10 · math.OC · cs.CG · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DWRAR7X2PFISDDV3YEXX4CRFUZ}

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	2026-05-18T03:13:44.603598Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1da208fefa7951218ebbc12f7e0a25a655a834cb27a84b119e04fcf86c6c456c

Aliases

arxiv: 1309.2460 · arxiv_version: 1309.2460v1 · doi: 10.48550/arxiv.1309.2460 · pith_short_12: DWRAR7X2PFIS · pith_short_16: DWRAR7X2PFISDDV3 · pith_short_8: DWRAR7X2

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/DWRAR7X2PFISDDV3YEXX4CRFUZ \
  | 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: 1da208fefa7951218ebbc12f7e0a25a655a834cb27a84b119e04fcf86c6c456c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e6cefb5f7eaf10a3b2a4974ac5fe80158184179f9bb933809245155f75be0e3",
    "cross_cats_sorted": [
      "cs.CG",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2013-09-10T11:24:24Z",
    "title_canon_sha256": "e521291291dd200ffd4f02379fd04f731f86a2c714ee5d05c6e574c3da452df7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.2460",
    "kind": "arxiv",
    "version": 1
  }
}