Pith Number

pith:H22DBZ64

pith:2012:H22DBZ647FVIY3MGM3U5GVGAMV

not attested not anchored not stored refs pending

Efficient single-photon-assisted entanglement concentration for partially entangled photon pairs

Bao-Yu Zheng, Lan Zhou, Sheng-Mei Zhao, Yu-Bo Sheng

arxiv:1202.2190 v1 · 2012-02-10 · 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{H22DBZ647FVIY3MGM3U5GVGAMV}

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	2026-05-18T01:58:31.427040Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3eb430e7dcf96a8c6d8666e9d354c06565a5bf07ec9a7db945530c988093790d

Aliases

arxiv: 1202.2190 · arxiv_version: 1202.2190v1 · doi: 10.48550/arxiv.1202.2190 · pith_short_12: H22DBZ647FVI · pith_short_16: H22DBZ647FVIY3MG · pith_short_8: H22DBZ64

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/H22DBZ647FVIY3MGM3U5GVGAMV \
  | 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: 3eb430e7dcf96a8c6d8666e9d354c06565a5bf07ec9a7db945530c988093790d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3a2a5411485392f4ecdaa8bb6985aaa03a4d9b7ce5ea4242e3475de7bcb7c673",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-02-10T05:26:18Z",
    "title_canon_sha256": "27d4b66db8835c2c247d1ebbaf77ac8cf2dc4aa109998118d7b538e7585e7a25"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.2190",
    "kind": "arxiv",
    "version": 1
  }
}