Pith Number

pith:JEM4AC6B

pith:2017:JEM4AC6BFALUPRAJCSO57SSN3N

not attested not anchored not stored refs pending

Computing Treewidth on the GPU

Hans L. Bodlaender, Tom C. van der Zanden

arxiv:1709.09990 v1 · 2017-09-28 · cs.DC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JEM4AC6BFALUPRAJCSO57SSN3N}

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	2026-05-18T00:34:06.002008Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4919c00bc1281747c409149ddfca4ddb7dce5fbdbf153262dfa089cd08498088

Aliases

arxiv: 1709.09990 · arxiv_version: 1709.09990v1 · doi: 10.48550/arxiv.1709.09990 · pith_short_12: JEM4AC6BFALU · pith_short_16: JEM4AC6BFALUPRAJ · pith_short_8: JEM4AC6B

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/JEM4AC6BFALUPRAJCSO57SSN3N \
  | 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: 4919c00bc1281747c409149ddfca4ddb7dce5fbdbf153262dfa089cd08498088

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b7160ad37660309897dfb3e6d3bd8958d57d33ee59867bda0b3b1a5a820357a5",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2017-09-28T14:34:55Z",
    "title_canon_sha256": "40496d76872d2bce25363a7a5da01a985a6b8b2b7fac74777b887b886b808c4a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.09990",
    "kind": "arxiv",
    "version": 1
  }
}