Pith Number

pith:SL6JIEAK

pith:2018:SL6JIEAKV4EVOOQGKSC5Z4WDYA

not attested not anchored not stored refs pending

SPRSF: Sparse Phase Retrieval via Smoothing Function

Henry Arguello, Jorge Bacca, Samuel Pinilla

arxiv:1807.09703 v1 · 2018-07-25 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SL6JIEAKV4EVOOQGKSC5Z4WDYA}

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	2026-05-18T00:09:48.474271Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

92fc94100aaf09573a065485dcf2c3c03aa1c4c3b65d33cde2414830b0b99040

Aliases

arxiv: 1807.09703 · arxiv_version: 1807.09703v1 · doi: 10.48550/arxiv.1807.09703 · pith_short_12: SL6JIEAKV4EV · pith_short_16: SL6JIEAKV4EVOOQG · pith_short_8: SL6JIEAK

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/SL6JIEAKV4EVOOQGKSC5Z4WDYA \
  | 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: 92fc94100aaf09573a065485dcf2c3c03aa1c4c3b65d33cde2414830b0b99040

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d18e300e69c59c8c0498f3324c53085d87085aa7b63a7108e7f6302883020f7c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-07-25T16:29:27Z",
    "title_canon_sha256": "b01b5dbe3e66231900db3cb298df02465057819adf405e38553655fc111e3465"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.09703",
    "kind": "arxiv",
    "version": 1
  }
}