Pith Number

pith:PNBTVANJ

pith:2009:PNBTVANJ463KIXR7Y2VIDDBVNZ

not attested not anchored not stored refs pending

Sparse Recovery from Combined Fusion Frame Measurements

Gitta Kutyniok, Holger Rauhut, Petros T. Boufounos

arxiv:0912.4988 v2 · 2009-12-25 · cs.IT · 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{PNBTVANJ463KIXR7Y2VIDDBVNZ}

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	2026-05-18T04:19:53.543129Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b433a81a9e7b6a45e3fc6aa818c356e611165a98124ea95a7d0e7823227753b

Aliases

arxiv: 0912.4988 · arxiv_version: 0912.4988v2 · doi: 10.48550/arxiv.0912.4988 · pith_short_12: PNBTVANJ463K · pith_short_16: PNBTVANJ463KIXR7 · pith_short_8: PNBTVANJ

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/PNBTVANJ463KIXR7Y2VIDDBVNZ \
  | 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: 7b433a81a9e7b6a45e3fc6aa818c356e611165a98124ea95a7d0e7823227753b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e98bfa155ed3d9df981a51dd0e822bc995cd6a991eaa7a004d0c7e0b33d65d79",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2009-12-25T23:13:01Z",
    "title_canon_sha256": "573862cae13c7e1ea6cd56aac6c72cda4a2f40148b191138cd2c9f2af9484117"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.4988",
    "kind": "arxiv",
    "version": 2
  }
}