Pith Number

pith:7XYS4CCJ

pith:2012:7XYS4CCJ5OQLZLMBLNRLRYDL7E

not attested not anchored not stored refs pending

A Near-Term Quantum Computing Approach for Hard Computational Problems in Space Exploration

Colin P. Williams, Eleanor G. Rieffel, Kristen L. Pudenz, Mark W. Johnson, Murray C. Thom, Sergey I. Knysh, Vadim N. Smelyanskiy, William G. Macready

arxiv:1204.2821 v2 · 2012-04-12 · 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{7XYS4CCJ5OQLZLMBLNRLRYDL7E}

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.

Cited by

1 paper in Pith

Quantum Decoding Algorithms: Quantum Speedups in Optimization

Receipt and verification

First computed	2026-05-18T03:57:38.431240Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fdf12e0849eba0bcad815b62b8e06bf91932d82a4a8acf4adeb7396bcbcb070d

Aliases

arxiv: 1204.2821 · arxiv_version: 1204.2821v2 · doi: 10.48550/arxiv.1204.2821 · pith_short_12: 7XYS4CCJ5OQL · pith_short_16: 7XYS4CCJ5OQLZLMB · pith_short_8: 7XYS4CCJ

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/7XYS4CCJ5OQLZLMBLNRLRYDL7E \
  | 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: fdf12e0849eba0bcad815b62b8e06bf91932d82a4a8acf4adeb7396bcbcb070d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0268cee8bd2635a7449eb56a72fc268dd96e350f7a32bf72aa8dad1d39d0a433",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-04-12T19:58:40Z",
    "title_canon_sha256": "99afd5d2477c9162542db4e1ddc4910704791610fb75696d78629ce8601b6e56"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.2821",
    "kind": "arxiv",
    "version": 2
  }
}