Pith Number

pith:B4OFP2TL

pith:2018:B4OFP2TLQKB5R4ZKPFUSUPYQRB

not attested not anchored not stored refs pending

The Method of Alternating Projections

Omer Ginat

arxiv:1809.05858 v1 · 2018-09-16 · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B4OFP2TLQKB5R4ZKPFUSUPYQRB}

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.

Cited by

1 paper in Pith

Entropy and singular-value moments of products of truncated random unitary matrices

Receipt and verification

First computed	2026-05-18T00:05:36.303625Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f1c57ea6b8283d8f32a79692a3f10887cd4363b2cdcf6d12bbb0d6cf46e956b

Aliases

arxiv: 1809.05858 · arxiv_version: 1809.05858v1 · doi: 10.48550/arxiv.1809.05858 · pith_short_12: B4OFP2TLQKB5 · pith_short_16: B4OFP2TLQKB5R4ZK · pith_short_8: B4OFP2TL

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/B4OFP2TLQKB5R4ZKPFUSUPYQRB \
  | 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: 0f1c57ea6b8283d8f32a79692a3f10887cd4363b2cdcf6d12bbb0d6cf46e956b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9488b321a695b75fa7aa04cca3861bc3f591fc575d5d46ce51452113d07ee56d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2018-09-16T11:55:11Z",
    "title_canon_sha256": "00344909aa2e982161c81555af6634d8ab005a0cb25d7da7bdf25dcbd933178e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.05858",
    "kind": "arxiv",
    "version": 1
  }
}