Pith Number

pith:J6VFF624

pith:2009:J6VFF624CHZRHLVO6KPHYBHVUV

not attested not anchored not stored refs pending

A black box method for solving the complex exponentials approximation problem

Piero Barone

arxiv:0905.4602 v2 · 2009-05-28 · stat.CO · math.NA · math.ST · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{J6VFF624CHZRHLVO6KPHYBHVUV}

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	2026-05-18T03:44:36.611625Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4faa52fb5c11f313aeaef29e7c04f5a5598031e3edfb69ab7f449d074b23d711

Aliases

arxiv: 0905.4602 · arxiv_version: 0905.4602v2 · doi: 10.48550/arxiv.0905.4602 · pith_short_12: J6VFF624CHZR · pith_short_16: J6VFF624CHZRHLVO · pith_short_8: J6VFF624

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/J6VFF624CHZRHLVO6KPHYBHVUV \
  | 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: 4faa52fb5c11f313aeaef29e7c04f5a5598031e3edfb69ab7f449d074b23d711

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62b17c48b081d8de48b467dcf437bb4af6eac32d083222d3a2b983f4952591be",
    "cross_cats_sorted": [
      "math.NA",
      "math.ST",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.CO",
    "submitted_at": "2009-05-28T10:21:19Z",
    "title_canon_sha256": "84a94d4eed61a1d20a60fa26f52458008198787c0752fb90b4681febdaedc22a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.4602",
    "kind": "arxiv",
    "version": 2
  }
}