Pith Number

pith:NWFE3FGF

pith:2011:NWFE3FGFMQ7Z4TA3FCGZQISM4L

not attested not anchored not stored refs pending

On Variable Density Compressive Sampling

Gilles Puy, Pierre Vandergheynst, Yves Wiaux

arxiv:1109.6202 v1 · 2011-09-28 · 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{NWFE3FGFMQ7Z4TA3FCGZQISM4L}

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	2026-05-18T04:12:09.574391Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d8a4d94c5643f9e4c1b288d98224ce2e200665d1fc03bbbc9ce5c48d6d87dac

Aliases

arxiv: 1109.6202 · arxiv_version: 1109.6202v1 · doi: 10.48550/arxiv.1109.6202 · pith_short_12: NWFE3FGFMQ7Z · pith_short_16: NWFE3FGFMQ7Z4TA3 · pith_short_8: NWFE3FGF

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/NWFE3FGFMQ7Z4TA3FCGZQISM4L \
  | 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: 6d8a4d94c5643f9e4c1b288d98224ce2e200665d1fc03bbbc9ce5c48d6d87dac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "827d15310b16ecff3a2be1d8ac01fe0182808567e1b8273681e40f9d2a2e62c6",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2011-09-28T13:45:01Z",
    "title_canon_sha256": "e5a9b3af7698ccdc06bbffa2aba64a87c6d257ddaa4da8ee3762f1395bf3db52"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.6202",
    "kind": "arxiv",
    "version": 1
  }
}