Pith Number

pith:UNSGA2NZ

pith:2010:UNSGA2NZWTG2GPR4LIF46SZT5M

not attested not anchored not stored refs pending

ECME Thresholding Methods for Sparse Signal Reconstruction

Aleksandar Dogandzic, Kun Qiu

arxiv:1004.4880 v3 · 2010-04-27 · 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{UNSGA2NZWTG2GPR4LIF46SZT5M}

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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	2026-05-18T04:36:59.298695Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3646069b9b4cda33e3c5a0bcf4b33eb1e6ce7081f5d2a1b48cf94054c321645

Aliases

arxiv: 1004.4880 · arxiv_version: 1004.4880v3 · doi: 10.48550/arxiv.1004.4880 · pith_short_12: UNSGA2NZWTG2 · pith_short_16: UNSGA2NZWTG2GPR4 · pith_short_8: UNSGA2NZ

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/UNSGA2NZWTG2GPR4LIF46SZT5M \
  | 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: a3646069b9b4cda33e3c5a0bcf4b33eb1e6ce7081f5d2a1b48cf94054c321645

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa9c30f2ba2f88f9c5bd661d05534819f47467df62eba47e97da5d9bfa53cd81",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2010-04-27T18:27:12Z",
    "title_canon_sha256": "aa420e2933272a63e7bcdbb983fc4f1564b1da81c17cb81edb7c5802f1b70c65"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.4880",
    "kind": "arxiv",
    "version": 3
  }
}