Pith Number

pith:WIKRSVFY

pith:2021:WIKRSVFYZNTSMNHXLJZLCX6HE7

not attested not anchored not stored refs pending

Battery-operated mid-infrared diode laser frequency combs

Clifford Frez, Lukasz A. Sterczewski, Mahmood Bagheri, Mathieu Fradet, Siamak Forouhar

arxiv:2112.03964 v2 · 2021-12-07 · 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{WIKRSVFYZNTSMNHXLJZLCX6HE7}

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	2026-07-05T07:38:06.605062Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b2151954b8cb672634f75a72b15fc727c48c7f59dc180e6f6efea621c5b8d01f

Aliases

arxiv: 2112.03964 · arxiv_version: 2112.03964v2 · doi: 10.48550/arxiv.2112.03964 · pith_short_12: WIKRSVFYZNTS · pith_short_16: WIKRSVFYZNTSMNHX · pith_short_8: WIKRSVFY

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/WIKRSVFYZNTSMNHXLJZLCX6HE7 \
  | 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: b2151954b8cb672634f75a72b15fc727c48c7f59dc180e6f6efea621c5b8d01f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4fc1807b774fb4fb743016ff9a0e98de98f4e162f22e41db334d5969e7da741e",
    "cross_cats_sorted": [
      "physics.app-ph"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2021-12-07T19:44:50Z",
    "title_canon_sha256": "3fe9cc7942112d5b15681647a746aba256e2a232ebf2dd55966f1a4f28287ce8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.03964",
    "kind": "arxiv",
    "version": 2
  }
}