Pith Number

pith:RCUC4AWV

pith:2017:RCUC4AWVY6RLCFKOQDWSAAIPXT

not attested not anchored not stored refs pending

Improvements on Spectral Bisection

Israel Rocha

arxiv:1703.00268 v1 · 2017-03-01 · 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{RCUC4AWVY6RLCFKOQDWSAAIPXT}

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	2026-05-18T00:49:45.410802Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

88a82e02d5c7a2b1154e80ed20010fbcfb32dd869fcadc6e64ee9414325aa4df

Aliases

arxiv: 1703.00268 · arxiv_version: 1703.00268v1 · doi: 10.48550/arxiv.1703.00268 · pith_short_12: RCUC4AWVY6RL · pith_short_16: RCUC4AWVY6RLCFKO · pith_short_8: RCUC4AWV

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/RCUC4AWVY6RLCFKOQDWSAAIPXT \
  | 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: 88a82e02d5c7a2b1154e80ed20010fbcfb32dd869fcadc6e64ee9414325aa4df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "876518cea7827626ee8f8746b058a5224f412869e4c206a86be2bbb52e554119",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-03-01T12:39:17Z",
    "title_canon_sha256": "b91eaa912e2670c5b436861faf4c56408e4f1d089567f2d7db6504d9e2772d14"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.00268",
    "kind": "arxiv",
    "version": 1
  }
}