Pith Number

pith:WU4Q37BJ

pith:2013:WU4Q37BJW5DC3OKUR2N2OZSM65

not attested not anchored not stored refs pending

Sending classical information through relativistic quantum channels

Adriano C. Torres, Andre G. S. Landulfo

arxiv:1304.4607 v1 · 2013-04-16 · quant-ph · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WU4Q37BJW5DC3OKUR2N2OZSM65}

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	2026-05-18T01:20:12.576127Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b5390dfc29b7462db9548e9ba7664cf772c5cc4b69c62d5f92706897d7ee008f

Aliases

arxiv: 1304.4607 · arxiv_version: 1304.4607v1 · doi: 10.48550/arxiv.1304.4607 · pith_short_12: WU4Q37BJW5DC · pith_short_16: WU4Q37BJW5DC3OKU · pith_short_8: WU4Q37BJ

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/WU4Q37BJW5DC3OKUR2N2OZSM65 \
  | 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: b5390dfc29b7462db9548e9ba7664cf772c5cc4b69c62d5f92706897d7ee008f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "47e157ead87ca14c5c96008f002943e85ff777793909f8e3fa13e60495ac08e4",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-04-16T20:19:39Z",
    "title_canon_sha256": "27417a171b00f9ca838b34614b578c876bbd7221a96d27ff3e390d612bd77dfa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.4607",
    "kind": "arxiv",
    "version": 1
  }
}