Pith Number

pith:U36DDJEO

pith:2014:U36DDJEOLKTNTSL6XTTHAEHTBT

not attested not anchored not stored refs pending

Narrowband Biphotons with Polarization-Frequency Coupled Hyperentanglement

Chi Shu, M. M. T. Loy, Peng Chen, Shengwang Du, Xianxin Guo

arxiv:1411.6119 v2 · 2014-11-22 · 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{U36DDJEOLKTNTSL6XTTHAEHTBT}

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	2026-05-18T02:18:21.663347Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6fc31a48e5aa6d9c97ebce67010f30cdef92cf67f4bc7c24ec5fe945a6bf6de

Aliases

arxiv: 1411.6119 · arxiv_version: 1411.6119v2 · doi: 10.48550/arxiv.1411.6119 · pith_short_12: U36DDJEOLKTN · pith_short_16: U36DDJEOLKTNTSL6 · pith_short_8: U36DDJEO

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/U36DDJEOLKTNTSL6XTTHAEHTBT \
  | 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: a6fc31a48e5aa6d9c97ebce67010f30cdef92cf67f4bc7c24ec5fe945a6bf6de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c5fd0f4d3fec8987153835475fd6fa9c2c0eb886f230c19b174cd217aeed92c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2014-11-22T12:03:08Z",
    "title_canon_sha256": "8d3d77897d51ed8b259b22e4f38e9bbfcd4163035861aa7914e32ea65d70e7b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.6119",
    "kind": "arxiv",
    "version": 2
  }
}