Pith Number

pith:UXK7EDXP

pith:2015:UXK7EDXPWF6RQSQEQW5XXRZWY4

not attested not anchored not stored refs pending

Polarization-entangled photon-pair source obtained via type-II non-collinear SPDC process with PPKTP crystal

Han Seb Moon, Heonoh Kim, Myoungsik Cha, Sang Min Lee

arxiv:1512.07698 v2 · 2015-12-24 · 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{UXK7EDXPWF6RQSQEQW5XXRZWY4}

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	2026-05-18T01:16:44.112180Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a5d5f20eefb17d184a0485bb7bc736c712f375d7cbbea0c30abb9d2d3f6d065a

Aliases

arxiv: 1512.07698 · arxiv_version: 1512.07698v2 · doi: 10.48550/arxiv.1512.07698 · pith_short_12: UXK7EDXPWF6R · pith_short_16: UXK7EDXPWF6RQSQE · pith_short_8: UXK7EDXP

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/UXK7EDXPWF6RQSQEQW5XXRZWY4 \
  | 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: a5d5f20eefb17d184a0485bb7bc736c712f375d7cbbea0c30abb9d2d3f6d065a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1eb9ee52317d9eee862eb4751bd13e8ab2288004e1890d953e7281f18e9ea5d0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-12-24T02:56:29Z",
    "title_canon_sha256": "e5af1bf539d0f04bda940838201f5456f2a2cf635ce49090dd391d3be0ce2c36"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.07698",
    "kind": "arxiv",
    "version": 2
  }
}