Pith Number

pith:LMG6HY6C

pith:2008:LMG6HY6CWZ3WMXZN7CJ6P6BMB4

not attested not anchored not stored refs pending

Entanglement Purification with Double Selection

Katsuji Yamamoto, Keisuke Fujii

arxiv:0811.2639 v1 · 2008-11-17 · 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{LMG6HY6CWZ3WMXZN7CJ6P6BMB4}

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	2026-05-18T02:15:20.824903Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5b0de3e3c2b677665f2df893e7f82c0f27f12ebb13d597f1780004fdcf8f30ad

Aliases

arxiv: 0811.2639 · arxiv_version: 0811.2639v1 · doi: 10.48550/arxiv.0811.2639 · pith_short_12: LMG6HY6CWZ3W · pith_short_16: LMG6HY6CWZ3WMXZN · pith_short_8: LMG6HY6C

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/LMG6HY6CWZ3WMXZN7CJ6P6BMB4 \
  | 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: 5b0de3e3c2b677665f2df893e7f82c0f27f12ebb13d597f1780004fdcf8f30ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d202fbb6c9663794145b0e40aeb42639d315c5116ffb316d6934b96462ea6ff",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2008-11-17T08:41:00Z",
    "title_canon_sha256": "c910905e05ff6bd86edd54299c506c8e3a860395caa1164782f58b4cf5ed0103"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0811.2639",
    "kind": "arxiv",
    "version": 1
  }
}