Pith Number

pith:WRRNACV4

pith:2011:WRRNACV4LROZBTJSGH667MQXL3

not attested not anchored not stored refs pending

Exact Reconstruction Conditions for Regularized Modified Basis Pursuit

Namrata Vaswani, Wei Lu

arxiv:1108.3350 v2 · 2011-08-16 · cs.IT · math.IT · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WRRNACV4LROZBTJSGH667MQXL3}

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	2026-05-18T02:00:53.058663Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b462d00abc5c5d90cd3231fdefb2175ef6be7dec536722077e47fd21265507be

Aliases

arxiv: 1108.3350 · arxiv_version: 1108.3350v2 · doi: 10.48550/arxiv.1108.3350 · pith_short_12: WRRNACV4LROZ · pith_short_16: WRRNACV4LROZBTJS · pith_short_8: WRRNACV4

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/WRRNACV4LROZBTJSGH667MQXL3 \
  | 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: b462d00abc5c5d90cd3231fdefb2175ef6be7dec536722077e47fd21265507be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ddecfafa8fbe46c00d9596bd93792381fb5fa0018cd88b62cccb95507d481c52",
    "cross_cats_sorted": [
      "math.IT",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2011-08-16T20:47:28Z",
    "title_canon_sha256": "54bf5ebdb75eb970268cf54e1f244750dc92c45ea268a4787cb6b6d556130278"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.3350",
    "kind": "arxiv",
    "version": 2
  }
}