Pith Number

pith:PV6BW2Q5

pith:2015:PV6BW2Q5MUO4BB6S5QUPA5GWYN

not attested not anchored not stored refs pending

A linear time algorithm for quantum 2-SAT

Niel de Beaudrap, Sevag Gharibian

arxiv:1508.07338 v1 · 2015-08-28 · quant-ph · cs.CC · 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{PV6BW2Q5MUO4BB6S5QUPA5GWYN}

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	2026-05-18T01:01:34.632967Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d7c1b6a1d651dc087d2ec28f074d6c359f9c22ff14bdebf70c591ac65c26649

Aliases

arxiv: 1508.07338 · arxiv_version: 1508.07338v1 · doi: 10.48550/arxiv.1508.07338 · pith_short_12: PV6BW2Q5MUO4 · pith_short_16: PV6BW2Q5MUO4BB6S · pith_short_8: PV6BW2Q5

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/PV6BW2Q5MUO4BB6S5QUPA5GWYN \
  | 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: 7d7c1b6a1d651dc087d2ec28f074d6c359f9c22ff14bdebf70c591ac65c26649

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9d1f399579c2c838c0ecfba89475ae6722664f23786d33e94c17736b41acdff",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-08-28T20:32:36Z",
    "title_canon_sha256": "aa9cbd2808f29d0e21831abc8f69bafdc84504eca5666f66d66e7b57202553f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.07338",
    "kind": "arxiv",
    "version": 1
  }
}