Pith Number

pith:525K4N2W

pith:2003:525K4N2WVLNEK755QJ4HND5YS4

not attested not anchored not stored refs pending

Entanglement purification for arbitrary unknown ionic states via linear optics

Ming Yang, Wei Song, Zhuo-Liang Cao

arxiv:quant-ph/0312087 v2 · 2003-12-10 · 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{525K4N2WVLNEK755QJ4HND5YS4}

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	2026-07-04T14:46:28.782978Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eebaae3756aada457fbd8278768fb89739cd9378f1d32713771f1c42e2875ffc

Aliases

arxiv: quant-ph/0312087 · arxiv_version: quant-ph/0312087v2 · doi: 10.48550/arxiv.quant-ph/0312087 · pith_short_12: 525K4N2WVLNE · pith_short_16: 525K4N2WVLNEK755 · pith_short_8: 525K4N2W

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/525K4N2WVLNEK755QJ4HND5YS4 \
  | 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: eebaae3756aada457fbd8278768fb89739cd9378f1d32713771f1c42e2875ffc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77727de188cedb1ab660b6e6762d2295401887cc13fec73422ce208ee183a64e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2003-12-10T13:07:26Z",
    "title_canon_sha256": "b499bb8bab950a3a59bdc29c0e79c70208acfa23f828142955d58047db825d29"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0312087",
    "kind": "arxiv",
    "version": 2
  }
}