Pith Number

pith:HAV7JCMZ

pith:2001:HAV7JCMZNHQDEPJPLOEEGPZEQZ

not attested not anchored not stored refs pending

Discrimination between nonorthogonal two-photon polarization states

Ulrike Herzog

arxiv:quant-ph/0105139 v1 · 2001-05-28 · 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{HAV7JCMZNHQDEPJPLOEEGPZEQZ}

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	2026-05-18T01:38:02.683836Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

382bf4899969e0323d2f5b88433f24865a8d065f436b5e9f6a6da5ea0fb09bde

Aliases

arxiv: quant-ph/0105139 · arxiv_version: quant-ph/0105139v1 · doi: 10.48550/arxiv.quant-ph/0105139 · pith_short_12: HAV7JCMZNHQD · pith_short_16: HAV7JCMZNHQDEPJP · pith_short_8: HAV7JCMZ

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/HAV7JCMZNHQDEPJPLOEEGPZEQZ \
  | 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: 382bf4899969e0323d2f5b88433f24865a8d065f436b5e9f6a6da5ea0fb09bde

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f61bd18c8e9f5afd7fc580b326bd772e4867cbd422afc883564c93e0d06aa34e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2001-05-28T16:03:22Z",
    "title_canon_sha256": "6473c770418d1843cfd59bce072b7bcf8221a9d586d0f9c2db981407bcc7daa3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0105139",
    "kind": "arxiv",
    "version": 1
  }
}