Pith Number

pith:4EXPQG56

pith:2014:4EXPQG565AIPW4CUE7NJCCVUON

not attested not anchored not stored refs pending

Hierarchical Recovery in Compressive Sensing

Charles J. Colbourn, Daniel Horsley, Violet R. Syrotiuk

arxiv:1403.1835 v1 · 2014-03-04 · cs.IT · math.CO · 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{4EXPQG565AIPW4CUE7NJCCVUON}

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	2026-05-18T02:56:52.461023Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e12ef81bbee810fb705427da910ab47365b829cb88fe7660254cb9f19f29f56a

Aliases

arxiv: 1403.1835 · arxiv_version: 1403.1835v1 · doi: 10.48550/arxiv.1403.1835 · pith_short_12: 4EXPQG565AIP · pith_short_16: 4EXPQG565AIPW4CU · pith_short_8: 4EXPQG56

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/4EXPQG565AIPW4CUE7NJCCVUON \
  | 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: e12ef81bbee810fb705427da910ab47365b829cb88fe7660254cb9f19f29f56a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "47d76be66b8d720c868521bc75aaf9acc5fdcc32400ebdee214fb41c455b4a04",
    "cross_cats_sorted": [
      "math.CO",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2014-03-04T07:03:53Z",
    "title_canon_sha256": "9c0cdaa987fbff9bd064fc1cfab4908d8fb434c8ca3c4699c89d5701560f9e7d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.1835",
    "kind": "arxiv",
    "version": 1
  }
}