Pith Number

pith:LHXK3ALJ

pith:2018:LHXK3ALJYKO67JTFM3YTGRP3OR

not attested not anchored not stored refs pending

A Proximal Operator for Multispectral Phase Retrieval Problems

Biel Roig-Solvas, Dana H. Brooks, Lee Makowski

arxiv:1808.05194 v1 · 2018-08-15 · 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{LHXK3ALJYKO67JTFM3YTGRP3OR}

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	2026-05-18T00:08:01.361942Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

59eead8169c29defa66566f13345fb7450b85dc2f4c1ab5b6f813ee151e7fd32

Aliases

arxiv: 1808.05194 · arxiv_version: 1808.05194v1 · doi: 10.48550/arxiv.1808.05194 · pith_short_12: LHXK3ALJYKO6 · pith_short_16: LHXK3ALJYKO67JTF · pith_short_8: LHXK3ALJ

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/LHXK3ALJYKO67JTFM3YTGRP3OR \
  | 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: 59eead8169c29defa66566f13345fb7450b85dc2f4c1ab5b6f813ee151e7fd32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "809981f55e41f528c3275ca9f30a3985ba5ebfd5974c85bd62af7bed656f6325",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-08-15T17:32:59Z",
    "title_canon_sha256": "63bcfa1b6d04799d26398724842f149d43371715cd01e2ef3db7d78fd280c801"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.05194",
    "kind": "arxiv",
    "version": 1
  }
}