Pith Number

pith:WQNHONVZ

pith:2012:WQNHONVZYW6M3IXPBFJH534S5O

not attested not anchored not stored refs pending

A new family of high-resolution multivariate spectral estimators

Mattia Zorzi

arxiv:1210.8290 v2 · 2012-10-31 · 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{WQNHONVZYW6M3IXPBFJH534S5O}

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	2026-05-18T03:07:34.636979Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b41a7736b9c5bccda2ef09527eef92eba566cc100a3f09cf7672e0a1f6eeedd5

Aliases

arxiv: 1210.8290 · arxiv_version: 1210.8290v2 · doi: 10.48550/arxiv.1210.8290 · pith_short_12: WQNHONVZYW6M · pith_short_16: WQNHONVZYW6M3IXP · pith_short_8: WQNHONVZ

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/WQNHONVZYW6M3IXPBFJH534S5O \
  | 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: b41a7736b9c5bccda2ef09527eef92eba566cc100a3f09cf7672e0a1f6eeedd5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eefc0766030b3bc63160212f68c1ecce96e7ae0cc86264f081c7ab29f68933fd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2012-10-31T10:39:40Z",
    "title_canon_sha256": "7d7f4a8389def96eb0c1c1554548e83ebdf01712bbcf984130c60e6f49f0f7ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.8290",
    "kind": "arxiv",
    "version": 2
  }
}