Pith Number

pith:P2OHW6HN

pith:2019:P2OHW6HNPNM7QLEZD5S3K7ZCYB

not attested not anchored not stored refs pending

A note on Levi-Civita functional equation

Belfakih Keltouma, Elqorachi Elhoucien

arxiv:1907.09622 v1 · 2019-07-22 · 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{P2OHW6HNPNM7QLEZD5S3K7ZCYB}

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	2026-05-17T23:39:52.740804Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e9c7b78ed7b59f82c991f65b57f22c049b765069700bcdbbe25abf0b830562e

Aliases

arxiv: 1907.09622 · arxiv_version: 1907.09622v1 · doi: 10.48550/arxiv.1907.09622 · pith_short_12: P2OHW6HNPNM7 · pith_short_16: P2OHW6HNPNM7QLEZ · pith_short_8: P2OHW6HN

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/P2OHW6HNPNM7QLEZD5S3K7ZCYB \
  | 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: 7e9c7b78ed7b59f82c991f65b57f22c049b765069700bcdbbe25abf0b830562e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b3357776fb78f38fb36f32c91fc2fd2f862f8c42be6fed586aae588376e835a1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2019-07-22T22:54:13Z",
    "title_canon_sha256": "048458fcf582a3f9dab4a2e1938f9f7c2541ce31d42c304017fb791dec9a8e32"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.09622",
    "kind": "arxiv",
    "version": 1
  }
}