Pith Number

pith:WKMEOEJC

pith:2018:WKMEOEJCEWR4LIX67W6QKYS44U

not attested not anchored not stored refs pending

InP femtosecond mode-locked laser in a compound feedback cavity with a switchable repetition rate

Guillermo Carpintero, Mu-Chieh Lo, Robinson Guzm\'an

arxiv:1802.06154 v1 · 2018-02-16 · 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{WKMEOEJCEWR4LIX67W6QKYS44U}

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	2026-05-18T00:23:04.278393Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b29847112225a3c5a2fefdbd05625ce534122b6ee4ca88ba4d7c06ea3266a17e

Aliases

arxiv: 1802.06154 · arxiv_version: 1802.06154v1 · doi: 10.48550/arxiv.1802.06154 · pith_short_12: WKMEOEJCEWR4 · pith_short_16: WKMEOEJCEWR4LIX6 · pith_short_8: WKMEOEJC

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/WKMEOEJCEWR4LIX67W6QKYS44U \
  | 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: b29847112225a3c5a2fefdbd05625ce534122b6ee4ca88ba4d7c06ea3266a17e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa8adb0bb234a85231cc719702e8194ecd921f4c928fff98465d094ab12b2d3d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2018-02-16T22:48:11Z",
    "title_canon_sha256": "4b74156a0f168de433e0c3f9f98270e3b5f971ce089e3f5f80810c196a9f8285"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.06154",
    "kind": "arxiv",
    "version": 1
  }
}