Pith Number

pith:UBUE5GHC

pith:2018:UBUE5GHCKS6DZYET4HFAEMLJF5

not attested not anchored not stored refs pending

Generating pure single-photon states via spontaneous four-wave mixing in a system of coupled microresonators

A.A. Kalachev, D.Yu. Tarankova, I.N. Chuprina, N.S. Perminov

arxiv:1808.04435 v1 · 2018-08-13 · 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{UBUE5GHCKS6DZYET4HFAEMLJF5}

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	2026-05-18T00:06:11.162447Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0684e98e254bc3ce093e1ca0231692f5f48704cfb55519e1f3abf4c8dbdc20c

Aliases

arxiv: 1808.04435 · arxiv_version: 1808.04435v1 · doi: 10.48550/arxiv.1808.04435 · pith_short_12: UBUE5GHCKS6D · pith_short_16: UBUE5GHCKS6DZYET · pith_short_8: UBUE5GHC

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/UBUE5GHCKS6DZYET4HFAEMLJF5 \
  | 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: a0684e98e254bc3ce093e1ca0231692f5f48704cfb55519e1f3abf4c8dbdc20c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9d99781c20e38b7dba383c981ff3e0f78e1b255c889e92614f0dc6bf1c5d9d0e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-08-13T20:19:58Z",
    "title_canon_sha256": "47a4323e496a288a77756bc1fa37bb4ac80035ecc8166ae58fea6e8e9edadda7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.04435",
    "kind": "arxiv",
    "version": 1
  }
}