Pith Number

pith:TQZ2ZNER

pith:2020:TQZ2ZNERD7A26ZR2ON7TQIIHWH

not attested not anchored not stored refs pending

Double-heterodyne probing for ultra-stable laser based on spectral hole burning in a rare-earth doped crystal

A. Ferrier, B. Fang, H. Alvarez-Martinez, N. Galland, N. Lucic, P. Goldner, R. Le Targat, S. Seidelin, S. Zhang, Y. Le Coq

arxiv:2004.01752 v1 · 2020-04-03 · physics.optics · physics.app-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{TQZ2ZNERD7A26ZR2ON7TQIIHWH}

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	2026-07-05T00:52:37.999810Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9c33acb4911fc1af663a737f382107b1ccf854e996c7eb75335f5ecdc38b582f

Aliases

arxiv: 2004.01752 · arxiv_version: 2004.01752v1 · doi: 10.48550/arxiv.2004.01752 · pith_short_12: TQZ2ZNERD7A2 · pith_short_16: TQZ2ZNERD7A26ZR2 · pith_short_8: TQZ2ZNER

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/TQZ2ZNERD7A26ZR2ON7TQIIHWH \
  | 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: 9c33acb4911fc1af663a737f382107b1ccf854e996c7eb75335f5ecdc38b582f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67adbf7e04ca7a8bfb0929dd899e5e6ce9b7847179b727d817643234b6331a1b",
    "cross_cats_sorted": [
      "physics.app-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2020-04-03T19:58:59Z",
    "title_canon_sha256": "2bdc9cfd41998269be01b94c3b91fb55b60b0bd3177cf15e2a40a8784914ab41"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.01752",
    "kind": "arxiv",
    "version": 1
  }
}