Pith Number

pith:QCOVD5RG

pith:2011:QCOVD5RGQ5UDZ4M547OTWZ3V6B

not attested not anchored not stored refs pending

Searches on star graphs and equivalent oracle problems

Hai-Woong Lee, Jaehak Lee, Mark Hillery

arxiv:1102.5480 v1 · 2011-02-27 · 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{QCOVD5RGQ5UDZ4M547OTWZ3V6B}

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	2026-05-18T04:27:46.814929Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

809d51f62687683cf19de7dd3b6775f07da84d27d5559d65776df5353c2caf84

Aliases

arxiv: 1102.5480 · arxiv_version: 1102.5480v1 · doi: 10.48550/arxiv.1102.5480 · pith_short_12: QCOVD5RGQ5UD · pith_short_16: QCOVD5RGQ5UDZ4M5 · pith_short_8: QCOVD5RG

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/QCOVD5RGQ5UDZ4M547OTWZ3V6B \
  | 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: 809d51f62687683cf19de7dd3b6775f07da84d27d5559d65776df5353c2caf84

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1171137125b5cd216b7c8a1d74cb875019ef08d0bfc6940e57824d655e5da11a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2011-02-27T07:22:30Z",
    "title_canon_sha256": "c2e9467d7d800b2ecc9ec76a7c3213ba169d91c44cb54f57b132e4e48b1a3c6e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.5480",
    "kind": "arxiv",
    "version": 1
  }
}