Pith Number

pith:FMHFYFBK

pith:2013:FMHFYFBK26ADLVEB5SSGMVBNGP

not attested not anchored not stored refs pending

MAX 2-SAT with up to 108 qubits

Daniel Lidar, Greg Quiroz, Greg Ver Steeg, Siddhartha Santra

arxiv:1307.3931 v1 · 2013-07-12 · 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{FMHFYFBK26ADLVEB5SSGMVBNGP}

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	2026-05-18T02:53:30.162915Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b0e5c142ad78035d481eca466542d33c22d01e00cbc176768d29da95317ec03

Aliases

arxiv: 1307.3931 · arxiv_version: 1307.3931v1 · doi: 10.48550/arxiv.1307.3931 · pith_short_12: FMHFYFBK26AD · pith_short_16: FMHFYFBK26ADLVEB · pith_short_8: FMHFYFBK

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/FMHFYFBK26ADLVEB5SSGMVBNGP \
  | 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: 2b0e5c142ad78035d481eca466542d33c22d01e00cbc176768d29da95317ec03

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad91639d11dce9e537e3854ebe45004851bd53bd7c98fbd1719222927e371661",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-07-12T15:56:37Z",
    "title_canon_sha256": "ca3a94382ffa778ffadf813d9dba2cbdeb5c6dc1eb83cfb3c1fe7f3c79cfb3e0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.3931",
    "kind": "arxiv",
    "version": 1
  }
}