Pith Number

pith:QFZL3WZQ

pith:2023:QFZL3WZQ3ETEPVHG65GAK5MBZ4

not attested not anchored not stored refs pending

No distributed quantum advantage for approximate graph coloring

Augusto Modanese, Fabian Kuhn, Fran\c{c}ois Le Gall, Francesco d'Amore, Gustav Schmid, Henrik Lievonen, Jukka Suomela, Marc-Olivier Renou, Rishikesh Gajjala, Xavier Coiteux-Roy

arxiv:2307.09444 v3 · 2023-07-18 · cs.DC · cs.CC · cs.DM · cs.ET · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QFZL3WZQ3ETEPVHG65GAK5MBZ4}

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	2026-07-05T07:59:16.984188Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8172bddb30d92647d4e6f74c057581cf37a7e6b4633b79c2a7bbf2dfbfe23afb

Aliases

arxiv: 2307.09444 · arxiv_version: 2307.09444v3 · doi: 10.48550/arxiv.2307.09444 · pith_short_12: QFZL3WZQ3ETE · pith_short_16: QFZL3WZQ3ETEPVHG · pith_short_8: QFZL3WZQ

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/QFZL3WZQ3ETEPVHG65GAK5MBZ4 \
  | 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: 8172bddb30d92647d4e6f74c057581cf37a7e6b4633b79c2a7bbf2dfbfe23afb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "628a6d2397909b0bb4ac8b08b39ca765c6cadcba5eec4aae85fd97bce83feb41",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.DM",
      "cs.ET",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2023-07-18T17:17:27Z",
    "title_canon_sha256": "3997aa57accc7058cdcde1c32288c1e83b6b980ab9f5d16930137ec6b6baf546"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2307.09444",
    "kind": "arxiv",
    "version": 3
  }
}