Pith Number

pith:WPNHJBBT

pith:2012:WPNHJBBT4WG6CCNLPA7CT35WW5

not attested not anchored not stored refs pending

Entanglement protection and generation under continuous monitoring

Alberto Barchielli, Matteo Gregoratti

arxiv:1202.2041 v1 · 2012-02-09 · quant-ph · math.PR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WPNHJBBT4WG6CCNLPA7CT35WW5}

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	2026-05-18T01:38:54.552942Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3da748433e58de109ab783e29efb6b749536a0785f0cdc45a2d7cd2f8dea3ac

Aliases

arxiv: 1202.2041 · arxiv_version: 1202.2041v1 · doi: 10.48550/arxiv.1202.2041 · pith_short_12: WPNHJBBT4WG6 · pith_short_16: WPNHJBBT4WG6CCNL · pith_short_8: WPNHJBBT

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/WPNHJBBT4WG6CCNLPA7CT35WW5 \
  | 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: b3da748433e58de109ab783e29efb6b749536a0785f0cdc45a2d7cd2f8dea3ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8058e3b9cb36a6039184e3c08312fea5dd5b04cca86c084a972cd1c95d11adfc",
    "cross_cats_sorted": [
      "math.PR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-02-09T16:40:22Z",
    "title_canon_sha256": "d06c3f6648f8be6ca765543c90dc374ba340727b5002f24b3994f3ca45b5ac42"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.2041",
    "kind": "arxiv",
    "version": 1
  }
}