Pith Number

pith:EE7HHFMA

pith:2016:EE7HHFMA5R6Y4ZV5MFWBT35XFE

not attested not anchored not stored refs pending

Generalized Sparse Covariance-based Estimation

Andreas Jakobsson, Johan Sw\"ard, Stefan Ingi Adalbj\"ornsson

arxiv:1609.03479 v2 · 2016-09-12 · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EE7HHFMA5R6Y4ZV5MFWBT35XFE}

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	2026-05-18T00:46:04.348787Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

213e739580ec7d8e66bd616c19efb7291b1047a72d3b544173b7bf5c18464059

Aliases

arxiv: 1609.03479 · arxiv_version: 1609.03479v2 · doi: 10.48550/arxiv.1609.03479 · pith_short_12: EE7HHFMA5R6Y · pith_short_16: EE7HHFMA5R6Y4ZV5 · pith_short_8: EE7HHFMA

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/EE7HHFMA5R6Y4ZV5MFWBT35XFE \
  | 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: 213e739580ec7d8e66bd616c19efb7291b1047a72d3b544173b7bf5c18464059

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "68215e30fa4b00e816cf674f7729a9f81229ccb16d53a469de87ca2e2133a1b5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2016-09-12T16:47:53Z",
    "title_canon_sha256": "4a0ea53076146cbe38714e4aed2526b278e612db4664e9275eff10cfb6ec6510"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.03479",
    "kind": "arxiv",
    "version": 2
  }
}