Pith Number

pith:4G45BG4H

pith:2021:4G45BG4HLCXNPIBS7BFUNSNJ5V

not attested not anchored not stored refs pending

Coherent mode-combined ultra-narrow-linewidth single-mode micro-disk laser

Haisu Zhang, Jianglin Guan, Jintian Lin, Li Deng, Lingling Qiao, Min Wang, Ni Yao, Renhong Gao, Saeed Farajollahi, Tao Lu, Wei Fang, Ya Cheng, Zhiwei Fang

arxiv:2107.08843 v1 · 2021-07-19 · 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{4G45BG4HLCXNPIBS7BFUNSNJ5V}

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	2026-07-05T02:58:53.594376Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1b9d09b8758aed7a032f84b46c9a9ed7ca70d4ee0018eb93b91a60e46ac3dca

Aliases

arxiv: 2107.08843 · arxiv_version: 2107.08843v1 · doi: 10.48550/arxiv.2107.08843 · pith_short_12: 4G45BG4HLCXN · pith_short_16: 4G45BG4HLCXNPIBS · pith_short_8: 4G45BG4H

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/4G45BG4HLCXNPIBS7BFUNSNJ5V \
  | 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: e1b9d09b8758aed7a032f84b46c9a9ed7ca70d4ee0018eb93b91a60e46ac3dca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b2b22407ac4e40359a19eb66ebe0a2351415c4a020b7702ae751e096099b6e7",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2021-07-19T13:00:13Z",
    "title_canon_sha256": "f0d1b6f472a4bf933200dc9043b4069ef6560919390e74e7cf4171afbb6b6bda"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.08843",
    "kind": "arxiv",
    "version": 1
  }
}