Pith Number

pith:T2MYZVB7

pith:2019:T2MYZVB7C5VY6OZICBK5EJU73O

not attested not anchored not stored refs pending

Richard's inequality, Cauchy-Schwarz's inequality and approximate solutions of Sincov's equation

W{\l}odzimierz Fechner

arxiv:1901.03957 v1 · 2019-01-13 · 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{T2MYZVB7C5VY6OZICBK5EJU73O}

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	2026-05-17T23:42:08.415137Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9e998cd43f176b8f3b281055d2269fdba270c7fee212c4e0d9787f07ce9b45e9

Aliases

arxiv: 1901.03957 · arxiv_version: 1901.03957v1 · doi: 10.48550/arxiv.1901.03957 · pith_short_12: T2MYZVB7C5VY · pith_short_16: T2MYZVB7C5VY6OZI · pith_short_8: T2MYZVB7

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/T2MYZVB7C5VY6OZICBK5EJU73O \
  | 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: 9e998cd43f176b8f3b281055d2269fdba270c7fee212c4e0d9787f07ce9b45e9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f323214196a36d0e4362a1fbeffae208020007d88f4fddee1ccf367feef29693",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2019-01-13T10:09:56Z",
    "title_canon_sha256": "a6d492914c5bf21b0e40b5ba58a4698690c4173e7dc2cb5dd5ae17f22591432f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.03957",
    "kind": "arxiv",
    "version": 1
  }
}