Pith Number

pith:HBOKWXTS

pith:2018:HBOKWXTSDNYE4HMNIRAIDV3IH5

not attested not anchored not stored refs pending

Graph Coarsening with Preserved Spectral Properties

Andreas Loukas, Joseph F. JaJa, Yu Jin

arxiv:1802.04447 v2 · 2018-02-13 · cs.SI · cs.NA · math.NA · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HBOKWXTSDNYE4HMNIRAIDV3IH5}

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

Graph-Coarsening Approach for the Capacitated Vehicle Routing Problem with Time Windows

Receipt and verification

First computed	2026-06-04T19:11:30.538974Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

385cab5e721b704e1d8d444081d7683f47011e3a86a30d38184810071e03883f

Aliases

arxiv: 1802.04447 · arxiv_version: 1802.04447v2 · doi: 10.48550/arxiv.1802.04447 · pith_short_12: HBOKWXTSDNYE · pith_short_16: HBOKWXTSDNYE4HMN · pith_short_8: HBOKWXTS

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/HBOKWXTSDNYE4HMNIRAIDV3IH5 \
  | 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: 385cab5e721b704e1d8d444081d7683f47011e3a86a30d38184810071e03883f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4f2603bf1c12c92f105acb5266f463793e31f1068541ca914af4301c0c81e482",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA",
      "stat.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2018-02-13T02:57:59Z",
    "title_canon_sha256": "a5ab6a0c08e22c3acf79298e2dd7aee8475b55434e5a0c238a3334b3852596bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.04447",
    "kind": "arxiv",
    "version": 2
  }
}