Pith Number

pith:LTFAJAQ2

pith:2015:LTFAJAQ2AXVSFXVYRRJYIN4RVQ

not attested not anchored not stored refs pending

A semidefinite programming approach to a cross-intersection problem with measures

Hajime Tanaka, Norihide Tokushige, Sho Suda

arxiv:1504.00135 v3 · 2015-04-01 · math.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{LTFAJAQ2AXVSFXVYRRJYIN4RVQ}

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	2026-05-18T00:05:40.101074Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5cca04821a05eb22deb88c53843791ac1672929d138206897b4d1638d5bade13

Aliases

arxiv: 1504.00135 · arxiv_version: 1504.00135v3 · doi: 10.48550/arxiv.1504.00135 · pith_short_12: LTFAJAQ2AXVS · pith_short_16: LTFAJAQ2AXVSFXVY · pith_short_8: LTFAJAQ2

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/LTFAJAQ2AXVSFXVYRRJYIN4RVQ \
  | 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: 5cca04821a05eb22deb88c53843791ac1672929d138206897b4d1638d5bade13

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5c0e52c1eca1055ef36d898ee76e1e8f21eb2c5e19083a8cd58883bcc5f3cee4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-04-01T08:11:21Z",
    "title_canon_sha256": "4d3b0586a2944b0c34cfa0c11f502d57b409a155dcdf9b134886f88d54c0782f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.00135",
    "kind": "arxiv",
    "version": 3
  }
}