Pith Number

pith:ERSH3QV2

pith:2009:ERSH3QV26YDGIGSXNOYU67YSGT

not attested not anchored not stored refs pending

Continuous-variables entanglement purification with atomic systems

David Vitali, Giovanna Morigi, Stefano Mancini, Stojan Rebic

arxiv:0912.2402 v2 · 2009-12-12 · 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{ERSH3QV26YDGIGSXNOYU67YSGT}

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	2026-05-18T02:10:24.245618Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

24647dc2baf606641a576bb14f7f1234ec4c7e42a1065350102238a847190373

Aliases

arxiv: 0912.2402 · arxiv_version: 0912.2402v2 · doi: 10.48550/arxiv.0912.2402 · pith_short_12: ERSH3QV26YDG · pith_short_16: ERSH3QV26YDGIGSX · pith_short_8: ERSH3QV2

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/ERSH3QV26YDGIGSXNOYU67YSGT \
  | 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: 24647dc2baf606641a576bb14f7f1234ec4c7e42a1065350102238a847190373

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "24507f8d86719c02a14318321649bdcb711556ec1abc3137b87eda09fc6b7789",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-12-12T07:26:27Z",
    "title_canon_sha256": "27213e4304385da91f50bc7a9fcf3f52ba870694b028f8d4591171198f9a806a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.2402",
    "kind": "arxiv",
    "version": 2
  }
}