Pith Number

pith:THZUU6ML

pith:2002:THZUU6MLMZNFVIC6KAKTV5SO5Q

not attested not anchored not stored refs pending

The distillable entanglement of multiple copies of Bell states

Dong Yang, Yi-Xin Chen

arxiv:quant-ph/0204004 v3 · 2002-04-01 · 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{THZUU6MLMZNFVIC6KAKTV5SO5Q}

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	2026-07-04T16:36:01.771223Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

99f34a798b665a5aa05e50153af64eec114397698fd47bf2c60f714894f29f39

Aliases

arxiv: quant-ph/0204004 · arxiv_version: quant-ph/0204004v3 · doi: 10.48550/arxiv.quant-ph/0204004 · pith_short_12: THZUU6MLMZNF · pith_short_16: THZUU6MLMZNFVIC6 · pith_short_8: THZUU6ML

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/THZUU6MLMZNFVIC6KAKTV5SO5Q \
  | 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: 99f34a798b665a5aa05e50153af64eec114397698fd47bf2c60f714894f29f39

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b51878d014e4f0a814cfadbe1efd308cddaaf6fc5168ae786a40cdcd5962bfbd",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2002-04-01T12:01:57Z",
    "title_canon_sha256": "33e14b4e93976720cf0d43089eacc8cdebec00ddacaae5b17bdaddfbd5f6422c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0204004",
    "kind": "arxiv",
    "version": 3
  }
}