pith. sign in
Pith Number

pith:5JHSHXK4

pith:2015:5JHSHXK43Q5MOLNJTH5V4VHSPY
not attested not anchored not stored refs pending

Multichannel sparse recovery of complex-valued signals using Huber's criterion

Esa Ollila

arxiv:1504.04184 v1 · 2015-04-16 · cs.IT · math.IT · stat.CO · stat.ML

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{5JHSHXK43Q5MOLNJTH5V4VHSPY}

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 2026-05-18T02:18:39.549402Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

ea4f23dd5cdc3ac72da999fb5e54f27e0702d814248a6432e59e8a727a1e529d

Aliases

arxiv: 1504.04184 · arxiv_version: 1504.04184v1 · doi: 10.48550/arxiv.1504.04184 · pith_short_12: 5JHSHXK43Q5M · pith_short_16: 5JHSHXK43Q5MOLNJ · pith_short_8: 5JHSHXK4
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/5JHSHXK43Q5MOLNJTH5V4VHSPY \
  | 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: ea4f23dd5cdc3ac72da999fb5e54f27e0702d814248a6432e59e8a727a1e529d
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "6aaf3b7cda6b7edf469ba9aa58ee8edee5fab63bfef8624effb172812bb0e9fb",
    "cross_cats_sorted": [
      "math.IT",
      "stat.CO",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-04-16T11:25:40Z",
    "title_canon_sha256": "fb3e704185236ef838be2663bbc53730441a618df97434378b32679ef22f0b90"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.04184",
    "kind": "arxiv",
    "version": 1
  }
}