Pith Number

pith:YZHO35DJ

pith:2011:YZHO35DJC4SC36T46SH426SUUL

not attested not anchored not stored refs pending

Approximation algorithms for QMA-complete problems

Julia Kempe, Sevag Gharibian

arxiv:1101.3884 v1 · 2011-01-20 · quant-ph · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YZHO35DJC4SC36T46SH426SUUL}

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	2026-05-18T01:01:34.889368Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c64eedf46917242dfa7cf48fcd7a54a2ed1c23b75cab2ce1565850a58ecf1472

Aliases

arxiv: 1101.3884 · arxiv_version: 1101.3884v1 · doi: 10.48550/arxiv.1101.3884 · pith_short_12: YZHO35DJC4SC · pith_short_16: YZHO35DJC4SC36T4 · pith_short_8: YZHO35DJ

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/YZHO35DJC4SC36T46SH426SUUL \
  | 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: c64eedf46917242dfa7cf48fcd7a54a2ed1c23b75cab2ce1565850a58ecf1472

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc57c293609014c135c3cc411e67e43c87ad14b88a57a70c0e050e8cf36551b7",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2011-01-20T12:42:53Z",
    "title_canon_sha256": "cc3b776b7ea783d665d3409ccc2e9bfc23e90e1050826138c99b3d759b83d7ba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.3884",
    "kind": "arxiv",
    "version": 1
  }
}