Pith Number

pith:WQEGJI37

pith:2009:WQEGJI37VPZ34HAO2M74EC3WFN

not attested not anchored not stored refs pending

On the discrimination between classical and quantum states

G. Brida, I. P. Degiovanni, I. Ruo Berchera, M. Bondani, M. G. A. Paris, M. Genovese, V. Schettini

arxiv:0909.5288 v1 · 2009-09-29 · 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{WQEGJI37VPZ34HAO2M74EC3WFN}

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	2026-05-18T04:20:14.788740Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b40864a37fabf3be1c0ed33fc20b762b4ff2e088bee681b54f43ec72bfc1807d

Aliases

arxiv: 0909.5288 · arxiv_version: 0909.5288v1 · doi: 10.48550/arxiv.0909.5288 · pith_short_12: WQEGJI37VPZ3 · pith_short_16: WQEGJI37VPZ34HAO · pith_short_8: WQEGJI37

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/WQEGJI37VPZ34HAO2M74EC3WFN \
  | 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: b40864a37fabf3be1c0ed33fc20b762b4ff2e088bee681b54f43ec72bfc1807d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d53469c05664ebba2435f8c184c973440a54ba83a40ac55876d2a4f4b194114a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-09-29T08:30:07Z",
    "title_canon_sha256": "a55bf3ecb8692ecc6a4276761c3e384a20c126539d6d779ef20060bd4c9185c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.5288",
    "kind": "arxiv",
    "version": 1
  }
}