Pith Number

pith:GXD2LQZP

pith:2017:GXD2LQZPWV37YAUGFPBNDTR5W3

not attested not anchored not stored refs pending

Factor Analysis for Spectral Estimation

Amit Singer, Joakim And\'en

arxiv:1702.04672 v2 · 2017-02-15 · math.ST · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GXD2LQZPWV37YAUGFPBNDTR5W3}

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	2026-05-17T23:58:54.798926Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

35c7a5c32fb577fc02862bc2d1ce3db6f0a4cabb3829a757c04c1e304ec67475

Aliases

arxiv: 1702.04672 · arxiv_version: 1702.04672v2 · doi: 10.48550/arxiv.1702.04672 · pith_short_12: GXD2LQZPWV37 · pith_short_16: GXD2LQZPWV37YAUG · pith_short_8: GXD2LQZP

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/GXD2LQZPWV37YAUGFPBNDTR5W3 \
  | 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: 35c7a5c32fb577fc02862bc2d1ce3db6f0a4cabb3829a757c04c1e304ec67475

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d9bae62e6be22beaf2c1998ac1224032ee9decc361bfd1f6a5e09ad56825044",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2017-02-15T16:31:15Z",
    "title_canon_sha256": "13d1516134a7184817724ccb5d3ab431471b97718db92b9c973e3b373e8f60a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.04672",
    "kind": "arxiv",
    "version": 2
  }
}