Pith Number

pith:7ERPAWPI

pith:2014:7ERPAWPIBTW5WMMD5JJB6JBBMU

not attested not anchored not stored refs pending

Logarithmic Derivatives of Least Deviation from Zero

Petr Chunaev

arxiv:1402.5021 v1 · 2014-02-20 · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7ERPAWPIBTW5WMMD5JJB6JBBMU}

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	2026-05-18T01:55:43.270922Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f922f059e80ceddb3183ea521f2421653438feb2b605bf125cdb37ccc11a2b9b

Aliases

arxiv: 1402.5021 · arxiv_version: 1402.5021v1 · doi: 10.48550/arxiv.1402.5021 · pith_short_12: 7ERPAWPIBTW5 · pith_short_16: 7ERPAWPIBTW5WMMD · pith_short_8: 7ERPAWPI

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/7ERPAWPIBTW5WMMD5JJB6JBBMU \
  | 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: f922f059e80ceddb3183ea521f2421653438feb2b605bf125cdb37ccc11a2b9b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "012467be57d56b5e3db513f30781ba3e8318cb25fcd17689a173ed4c8cb07f63",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2014-02-20T15:01:09Z",
    "title_canon_sha256": "3f7d764a789e7a12b4d69c9a90c75102c0f81e9d73615c3e07d829e9035085fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.5021",
    "kind": "arxiv",
    "version": 1
  }
}