Pith Number

pith:CGUHWY5F

pith:2017:CGUHWY5F4TQAYNJFGB4FGMBWHL

not attested not anchored not stored refs pending

Optimal Matroid Partitioning Problems

Hanna Sumita, Kazuhisa Makino, Kei Kimura, Yasushi Kawase

arxiv:1710.00950 v1 · 2017-10-03 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CGUHWY5F4TQAYNJFGB4FGMBWHL}

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	2026-05-18T00:33:47.388431Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

11a87b63a5e4e00c352530785330363ac975f6ba9a045cda43d5dcdd8edf336e

Aliases

arxiv: 1710.00950 · arxiv_version: 1710.00950v1 · doi: 10.48550/arxiv.1710.00950 · pith_short_12: CGUHWY5F4TQA · pith_short_16: CGUHWY5F4TQAYNJF · pith_short_8: CGUHWY5F

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/CGUHWY5F4TQAYNJFGB4FGMBWHL \
  | 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: 11a87b63a5e4e00c352530785330363ac975f6ba9a045cda43d5dcdd8edf336e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "64ea5cb3a9674444410286750a91f56ee7064dbaa0771884c1a53a72b6484550",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-10-03T01:00:19Z",
    "title_canon_sha256": "f066a57f3391b69158ff154873f30ee6f1cbab1e222fb011493457236c606d93"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.00950",
    "kind": "arxiv",
    "version": 1
  }
}