Pith Number

pith:ZDKYXXLK

pith:2004:ZDKYXXLKB3B64TS4XVU26HU73L

not attested not anchored not stored refs pending

Robust Uncertainty Principles: Exact Signal Reconstruction from Highly Incomplete Frequency Information

Emmanuel Candes, Justin Romberg, Terence Tao

arxiv:math/0409186 v1 · 2004-09-10 · math.NA · cs.NA · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZDKYXXLKB3B64TS4XVU26HU73L}

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.

Cited by

1 paper in Pith

Re-Weighted $\ell_1$ Algorithms within the Lagrange Duality Framework: Bringing Interpretability to Weights

Receipt and verification

First computed	2026-06-03T22:06:15.680380Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c8d58bdd6a0ec3ee4e5cbd69af1e9fdafdfb4ff2465d6feca67b3b45aec4856e

Aliases

arxiv: math/0409186 · arxiv_version: math/0409186v1 · doi: 10.48550/arxiv.math/0409186 · pith_short_12: ZDKYXXLKB3B6 · pith_short_16: ZDKYXXLKB3B64TS4 · pith_short_8: ZDKYXXLK

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/ZDKYXXLKB3B64TS4XVU26HU73L \
  | 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: c8d58bdd6a0ec3ee4e5cbd69af1e9fdafdfb4ff2465d6feca67b3b45aec4856e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d6a222f9c4cb244a55d8126faf50ef87997d00a14013ef63c9f364146186ca97",
    "cross_cats_sorted": [
      "cs.NA",
      "math.CA"
    ],
    "license": "",
    "primary_cat": "math.NA",
    "submitted_at": "2004-09-10T18:45:22Z",
    "title_canon_sha256": "fab20cbc56d7eb7141cfc986fadfad9281fdb32ebb1bc3a1951a10e75b103077"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0409186",
    "kind": "arxiv",
    "version": 1
  }
}