Pith Number

pith:62RKJGXK

pith:2015:62RKJGXKAXNRWOYFPHLCOX7ULV

not attested not anchored not stored refs pending

Intrinsic upper bound on two-qubit polarization entanglement predetermined by pump polarization correlations in parametric down-conversion

Anand. K. Jha, Girish Kulkarni, V. Subrahmanyam

arxiv:1511.09288 v2 · 2015-11-30 · 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{62RKJGXKAXNRWOYFPHLCOX7ULV}

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	2026-05-18T01:11:38.563157Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f6a2a49aea05db1b3b0579d6275ff45d6498ef33699c627fe4bdb5bc874b79ff

Aliases

arxiv: 1511.09288 · arxiv_version: 1511.09288v2 · doi: 10.48550/arxiv.1511.09288 · pith_short_12: 62RKJGXKAXNR · pith_short_16: 62RKJGXKAXNRWOYF · pith_short_8: 62RKJGXK

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/62RKJGXKAXNRWOYFPHLCOX7ULV \
  | 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: f6a2a49aea05db1b3b0579d6275ff45d6498ef33699c627fe4bdb5bc874b79ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6acb730b456fa4c443429d5d0f0b425944931c912489b5a0ba021c1bea8d51ca",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-11-30T13:04:40Z",
    "title_canon_sha256": "d6751d711ae4ca0c2924520652d550ad897ab8775d75c6f0e541a6055533a2f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.09288",
    "kind": "arxiv",
    "version": 2
  }
}