Pith Number

pith:N3Y73SC5

pith:2021:N3Y73SC5XG5TFRAHSBDJX6IKOB

not attested not anchored not stored refs pending

Matroid-Based TSP Rounding for Half-Integral Solutions

Anupam Gupta, Euiwoong Lee, Heather Newman, Jason Li, Marcin Mucha, Sherry Sarkar

arxiv:2111.09290 v2 · 2021-11-17 · 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{N3Y73SC5XG5TFRAHSBDJX6IKOB}

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.

Cited by

1 paper in Pith

Thin Trees for Near Minimum Cuts

Receipt and verification

First computed	2026-07-05T11:37:40.876740Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ef1fdc85db9bb32c40790469bf90a705abde014de3c003ba04a38baf40b9911

Aliases

arxiv: 2111.09290 · arxiv_version: 2111.09290v2 · doi: 10.48550/arxiv.2111.09290 · pith_short_12: N3Y73SC5XG5T · pith_short_16: N3Y73SC5XG5TFRAH · pith_short_8: N3Y73SC5

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/N3Y73SC5XG5TFRAHSBDJX6IKOB \
  | 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: 6ef1fdc85db9bb32c40790469bf90a705abde014de3c003ba04a38baf40b9911

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67063ab6fedbacd6ccfebfcbe9bfd4e0b0a75d585904774fc8ce85ba02a6d5e5",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2021-11-17T18:42:54Z",
    "title_canon_sha256": "ff2441d79a6fc35384ca2525d837d3bc6646f92c6d09537344977c4cdf5bf7d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.09290",
    "kind": "arxiv",
    "version": 2
  }
}