Pith Number

pith:FWKKFFOF

pith:2018:FWKKFFOF7OVY2L5MOBO57YD6AT

not attested not anchored not stored refs pending

Crystalline optical cavity at 4 K with thermal noise limited instability and ultralow drift

Dan G. Matei, Eric Oelker, Fritz Riehle, John M. Robinson, Jun Ye, Thomas Legero, Uwe Sterr, Wei Zhang, William R. Milner

arxiv:1812.03842 v1 · 2018-12-06 · physics.ins-det · physics.atom-ph · 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{FWKKFFOF7OVY2L5MOBO57YD6AT}

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	2026-05-17T23:58:43.732967Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d94a295c5fbab8d2fac705ddfe07e04fbe299ab5a499cabb48de50a5b133e9b

Aliases

arxiv: 1812.03842 · arxiv_version: 1812.03842v1 · doi: 10.48550/arxiv.1812.03842 · pith_short_12: FWKKFFOF7OVY · pith_short_16: FWKKFFOF7OVY2L5M · pith_short_8: FWKKFFOF

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/FWKKFFOF7OVY2L5MOBO57YD6AT \
  | 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: 2d94a295c5fbab8d2fac705ddfe07e04fbe299ab5a499cabb48de50a5b133e9b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9fd16d4514d5dbd08c27a63fe9c1444c44c80bd13196edcc867cecc58f55b913",
    "cross_cats_sorted": [
      "physics.atom-ph",
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ins-det",
    "submitted_at": "2018-12-06T20:16:23Z",
    "title_canon_sha256": "f91eb4995b5a56dc5da5bb635282e2c4ff38d7928b5619313e605f71e6854d0a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.03842",
    "kind": "arxiv",
    "version": 1
  }
}