Pith Number

pith:WKJ5GPT5

pith:2026:WKJ5GPT5545S5H3TKSFHZH7VQZ

not attested not anchored not stored refs pending

Second-harmonic generation from an optically levitated KTP nanocrystal in vacuum

Chenli Gao, Jiayu Feng, Jing Zhang, Xudong Yu, Yuanbin Jin, Yuxuan Hao

arxiv:2607.02871 v1 · 2026-07-03 · physics.optics

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WKJ5GPT5545S5H3TKSFHZH7VQZ}

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	2026-07-07T01:16:34.963196Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b293d33e7def3b2e9f73548a7c9ff5866115afceab253479221b2c05cbf79aef

Aliases

arxiv: 2607.02871 · arxiv_version: 2607.02871v1 · doi: 10.48550/arxiv.2607.02871 · pith_short_12: WKJ5GPT5545S · pith_short_16: WKJ5GPT5545S5H3T · pith_short_8: WKJ5GPT5

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/WKJ5GPT5545S5H3TKSFHZH7VQZ \
  | 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: b293d33e7def3b2e9f73548a7c9ff5866115afceab253479221b2c05cbf79aef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "94a03db4768bc6a7bb7345b18f8aa6154fe7940a9176dafc36655dde1d6cbd78",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2026-07-03T02:19:08Z",
    "title_canon_sha256": "8e1c7b2b69e268feaa9a9bffadbd9dca9943d7fa8d62f9bf58a5491f0cebd031"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.02871",
    "kind": "arxiv",
    "version": 1
  }
}