Pith Number

pith:2PUNGMUK

pith:2022:2PUNGMUKPGOJSAGCY74VX52KL2

not attested not anchored not stored refs pending

Algorithmic QUBO Formulations for k-SAT and Hamiltonian Cycles

Claudia Linnhoff-Popien, Jonas N\"u{\ss}lein, Sebastian Feld, Thomas Gabor

arxiv:2204.13539 v1 · 2022-04-28 · 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{2PUNGMUKPGOJSAGCY74VX52KL2}

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	2026-07-05T04:18:43.359056Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3e8d3328a799c9900c2c7f95bf74a5e96d878c534b04843e81ab37b6664213a

Aliases

arxiv: 2204.13539 · arxiv_version: 2204.13539v1 · doi: 10.48550/arxiv.2204.13539 · pith_short_12: 2PUNGMUKPGOJ · pith_short_16: 2PUNGMUKPGOJSAGC · pith_short_8: 2PUNGMUK

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/2PUNGMUKPGOJSAGCY74VX52KL2 \
  | 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: d3e8d3328a799c9900c2c7f95bf74a5e96d878c534b04843e81ab37b6664213a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c4ab41d2ecb3dbbb2d3c6d2c74d48a24206e0a634cd7b3ee4858f00b09c8f27",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2022-04-28T14:40:26Z",
    "title_canon_sha256": "9bac3056bc10d018b4b0b3f3f4cbb20aafebbf9fdff3ef3ab79463dfe3a25939"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2204.13539",
    "kind": "arxiv",
    "version": 1
  }
}