Pith Number

pith:YDGUMKTI

pith:2008:YDGUMKTIROYLOB2DFNXBBJH74U

not attested not anchored not stored refs pending

On the reconstruction of block-sparse signals with an optimal number of measurements

Babak Hassibi, Farzad Parvaresh, Mihailo Stojnic

arxiv:0804.0041 v1 · 2008-03-31 · cs.IT · cs.NA · 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{YDGUMKTIROYLOB2DFNXBBJH74U}

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	2026-05-18T04:27:16.504035Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c0cd462a688bb0b707432b6e10a4ffe51110a70026faa1bc645efc6b246240ed

Aliases

arxiv: 0804.0041 · arxiv_version: 0804.0041v1 · doi: 10.48550/arxiv.0804.0041 · pith_short_12: YDGUMKTIROYL · pith_short_16: YDGUMKTIROYLOB2D · pith_short_8: YDGUMKTI

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/YDGUMKTIROYLOB2DFNXBBJH74U \
  | 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: c0cd462a688bb0b707432b6e10a4ffe51110a70026faa1bc645efc6b246240ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "92cb723b19674f372b8c144603b99b4442f44a17c8ca648da786dc9955b07e90",
    "cross_cats_sorted": [
      "cs.NA",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2008-03-31T23:00:33Z",
    "title_canon_sha256": "9034fed062f67c5901d83f15ea116cbbdd0bfb94287ddbbaddb127bc2b615e2c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0804.0041",
    "kind": "arxiv",
    "version": 1
  }
}