Pith Number

pith:PKYWQMRW

pith:2004:PKYWQMRWDC3DURSP4SHHZOX2IP

not attested not anchored not stored refs pending

Efficient and spectrally bright source of polarization-entangled photons

Elliott J. Mason, Franco N. C. Wong, Friedrich K\"onig, Marius A. Albota

arxiv:quant-ph/0409162 v1 · 2004-09-24 · 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{PKYWQMRWDC3DURSP4SHHZOX2IP}

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	2026-05-18T01:08:45.781403Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ab168323618b63a464fe48e7cbafa43d2fe713d175ebe7e5c26cb7e2742bce6

Aliases

arxiv: quant-ph/0409162 · arxiv_version: quant-ph/0409162v1 · doi: 10.48550/arxiv.quant-ph/0409162 · pith_short_12: PKYWQMRWDC3D · pith_short_16: PKYWQMRWDC3DURSP · pith_short_8: PKYWQMRW

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/PKYWQMRWDC3DURSP4SHHZOX2IP \
  | 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: 7ab168323618b63a464fe48e7cbafa43d2fe713d175ebe7e5c26cb7e2742bce6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1dcf747afade1e4199d04e040cb0903059993204cbb6246910bae0735da09ac4",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2004-09-24T19:57:27Z",
    "title_canon_sha256": "231ae9ccc200ef53fb43af0e84de5d0172e3d067e6e2915c37938d80c00d35aa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0409162",
    "kind": "arxiv",
    "version": 1
  }
}