Pith Number

pith:TR3LJ7RE

pith:2006:TR3LJ7REG5M6ULXDPDKZEKF3K3

not attested not anchored not stored refs pending

Bound entangled states with nonzero distillable key rate

Dong Pyo Chi, Jeong San Kim, Jeong Woon Choi, Soojoon Lee, Taewan Kim

arxiv:quant-ph/0612225 v4 · 2006-12-29 · 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{TR3LJ7REG5M6ULXDPDKZEKF3K3}

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	2026-05-18T01:37:53.616548Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9c76b4fe243759ea2ee378d59228bb56f3c4d42bdadf40a1efd3a174e3cfe37e

Aliases

arxiv: quant-ph/0612225 · arxiv_version: quant-ph/0612225v4 · doi: 10.48550/arxiv.quant-ph/0612225 · pith_short_12: TR3LJ7REG5M6 · pith_short_16: TR3LJ7REG5M6ULXD · pith_short_8: TR3LJ7RE

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/TR3LJ7REG5M6ULXDPDKZEKF3K3 \
  | 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: 9c76b4fe243759ea2ee378d59228bb56f3c4d42bdadf40a1efd3a174e3cfe37e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e552a6eef37dec902ba3056944001ee728b6012d96d3d768ba3658d0c0450e90",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2006-12-29T12:39:15Z",
    "title_canon_sha256": "2efbffa2e4ea4af1fe99360a61b535047b39bac69188e01090a6bae6f03b73ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0612225",
    "kind": "arxiv",
    "version": 4
  }
}