Pith Number

pith:BFZQK7Q2

pith:2012:BFZQK7Q2YVZFR3FAKNIYHHM6CZ

not attested not anchored not stored refs pending

Efficient Wiener filtering without preconditioning

Benjamin D. Wandelt, Franz Elsner

arxiv:1210.4931 v2 · 2012-10-17 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BFZQK7Q2YVZFR3FAKNIYHHM6CZ}

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	2026-05-18T03:36:57.922470Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0973057e1ac57258eca05351839d9e1671e6ee4d1003fb24f51c5d0da338257b

Aliases

arxiv: 1210.4931 · arxiv_version: 1210.4931v2 · doi: 10.48550/arxiv.1210.4931 · pith_short_12: BFZQK7Q2YVZF · pith_short_16: BFZQK7Q2YVZFR3FA · pith_short_8: BFZQK7Q2

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/BFZQK7Q2YVZFR3FAKNIYHHM6CZ \
  | 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: 0973057e1ac57258eca05351839d9e1671e6ee4d1003fb24f51c5d0da338257b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79f9cdcdb9b50d3807f700903e69565494e133fc8411da14b55127813e127fa9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-10-17T20:00:04Z",
    "title_canon_sha256": "b3b691ca2838cf636f116bf4d3232963b2ea7548b3bc61021ec2b9ee4fd36e60"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.4931",
    "kind": "arxiv",
    "version": 2
  }
}