Pith Number

pith:APMKFFBF

pith:2006:APMKFFBFBKAMDDT2ET4KIAXLIK

not attested not anchored not stored refs pending

Single-experiment-detectable multipartite entanglement witness for ensemble quantum computing

Akira SaiToh, Masahiro Kitagawa, Mikio Nakahara, Robabeh Rahimi

arxiv:quant-ph/0608168 v4 · 2006-08-22 · 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{APMKFFBFBKAMDDT2ET4KIAXLIK}

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	2026-05-18T01:37:54.366764Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

03d8a294250a80c18e7a24f8a402eb42b79f9badcbd0e0d0facfc8ec069bea0c

Aliases

arxiv: quant-ph/0608168 · arxiv_version: quant-ph/0608168v4 · doi: 10.48550/arxiv.quant-ph/0608168 · pith_short_12: APMKFFBFBKAM · pith_short_16: APMKFFBFBKAMDDT2 · pith_short_8: APMKFFBF

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/APMKFFBFBKAMDDT2ET4KIAXLIK \
  | 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: 03d8a294250a80c18e7a24f8a402eb42b79f9badcbd0e0d0facfc8ec069bea0c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "46547aff2b41210b10060495236409ac75a3a0156446d627847404b70118d217",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2006-08-22T15:01:41Z",
    "title_canon_sha256": "3f8b3087f5ae455f09c95cea5d624ad1f09948b2d88a112eedb403c0aae83ca2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0608168",
    "kind": "arxiv",
    "version": 4
  }
}