Pith Number

pith:TSIME5YL

pith:2018:TSIME5YLP52XMLRGQZ2E76LRTO

not attested not anchored not stored refs pending

Optimal Spectral Initialization for Signal Recovery with Applications to Phase Retrieval

Wael Alghamdi, Wangyu Luo, Yue M. Lu

arxiv:1811.04420 v1 · 2018-11-11 · 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{TSIME5YLP52XMLRGQZ2E76LRTO}

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	2026-05-17T23:47:29.608531Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9c90c2770b7f75762e2686744ff9719b90ff358ae9b5e9fad0afc57f6098d6bd

Aliases

arxiv: 1811.04420 · arxiv_version: 1811.04420v1 · doi: 10.48550/arxiv.1811.04420 · pith_short_12: TSIME5YLP52X · pith_short_16: TSIME5YLP52XMLRG · pith_short_8: TSIME5YL

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/TSIME5YLP52XMLRGQZ2E76LRTO \
  | 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: 9c90c2770b7f75762e2686744ff9719b90ff358ae9b5e9fad0afc57f6098d6bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fe295e6e280bf217a14f54a020c68fde47c5072fc7eefbe446fb609bf100a014",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-11-11T14:08:31Z",
    "title_canon_sha256": "987c4b266125df292d272865c002dcbfac5cb3c3ad44c61c57456f7ed063e58d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.04420",
    "kind": "arxiv",
    "version": 1
  }
}