Pith Number

pith:DCKBYETJ

pith:2014:DCKBYETJF3IDYUVIYKBCSC2MYO

not attested not anchored not stored refs pending

Multivariate Spectral Estimation based on the concept of Optimal Prediction

Mattia Zorzi

arxiv:1402.0069 v2 · 2014-02-01 · 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{DCKBYETJF3IDYUVIYKBCSC2MYO}

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	2026-05-18T02:49:01.765699Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18941c12692ed03c52a8c282290b4cc39a8145508923f142c8ebf2494559fde4

Aliases

arxiv: 1402.0069 · arxiv_version: 1402.0069v2 · doi: 10.48550/arxiv.1402.0069 · pith_short_12: DCKBYETJF3ID · pith_short_16: DCKBYETJF3IDYUVI · pith_short_8: DCKBYETJ

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/DCKBYETJF3IDYUVIYKBCSC2MYO \
  | 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: 18941c12692ed03c52a8c282290b4cc39a8145508923f142c8ebf2494559fde4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7cd74875bd9c2b1d915dbfca65aae08731c3c02c65fc00c2dda2118317b7faf0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2014-02-01T10:07:49Z",
    "title_canon_sha256": "f5c506abb0e25d7e530e0fed0a5bf3363b6d6b441119b561b9ec35d9d971c9ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.0069",
    "kind": "arxiv",
    "version": 2
  }
}