Pith Number

pith:I67IUQFR

pith:2014:I67IUQFRPPIIL4UHIBW4S275QA

not attested not anchored not stored refs pending

Discrete Convexity and Polynomial Solvability in Minimum 0-Extension Problems

Hiroshi Hirai

arxiv:1405.4960 v3 · 2014-05-20 · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I67IUQFRPPIIL4UHIBW4S275QA}

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	2026-05-18T01:22:48.910658Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47be8a40b17bd085f287406dc96bfd80004a9e002b8a4be01d226c0c4bdbaa16

Aliases

arxiv: 1405.4960 · arxiv_version: 1405.4960v3 · doi: 10.48550/arxiv.1405.4960 · pith_short_12: I67IUQFRPPII · pith_short_16: I67IUQFRPPIIL4UH · pith_short_8: I67IUQFR

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/I67IUQFRPPIIL4UHIBW4S275QA \
  | 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: 47be8a40b17bd085f287406dc96bfd80004a9e002b8a4be01d226c0c4bdbaa16

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "418c2a5162771690567d826cf43bb12637e13669f404add7d0fb50e57cc4930e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2014-05-20T06:10:35Z",
    "title_canon_sha256": "3e10daac13a25317521667d93dac453a96f8cde94b0aaf0a7f4bf09a4c08683e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.4960",
    "kind": "arxiv",
    "version": 3
  }
}