Pith Number

pith:BY2K22IR

pith:2011:BY2K22IRXIA37RXOXYT4IFMZMA

not attested not anchored not stored refs pending

Shrinking the Quadratic Estimator

Debashis Paul, Ethan Anderes

arxiv:1110.1694 v1 · 2011-10-08 · astro-ph.IM · astro-ph.CO · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BY2K22IRXIA37RXOXYT4IFMZMA}

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	2026-05-18T02:00:16.216533Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0e34ad6911ba01bfc6eebe27c41599603e3fe6e19f7416be3ce5213832d0e2b0

Aliases

arxiv: 1110.1694 · arxiv_version: 1110.1694v1 · doi: 10.48550/arxiv.1110.1694 · pith_short_12: BY2K22IRXIA3 · pith_short_16: BY2K22IRXIA37RXO · pith_short_8: BY2K22IR

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/BY2K22IRXIA37RXOXYT4IFMZMA \
  | 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: 0e34ad6911ba01bfc6eebe27c41599603e3fe6e19f7416be3ce5213832d0e2b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d9c95c42da86c7c225cdf229d1e3a2ae8075c418c0f86771fd9bd48f0588747",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "stat.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-10-08T04:19:47Z",
    "title_canon_sha256": "1fd80f005d6c74e203c3e32cd01a1cf305a02df6c7f134a6319376c6e6de79de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.1694",
    "kind": "arxiv",
    "version": 1
  }
}