Pith Number

pith:UNE4WZYN

pith:2015:UNE4WZYNN4O6XIQPOMWAEHYJFR

not attested not anchored not stored refs pending

A low-phase-noise 18 GHz Kerr frequency microcomb phase-locked over 65 THz

C. W. Wong, D.-L. Kwong, H. Zhou, J. Yang, M. Yu, S.-W. Huang

arxiv:1502.05444 v1 · 2015-02-18 · 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{UNE4WZYNN4O6XIQPOMWAEHYJFR}

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	2026-05-18T02:26:46.521727Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a349cb670d6f1deba20f732c021f092c52a31db156c5eed770ef992e5f6d2117

Aliases

arxiv: 1502.05444 · arxiv_version: 1502.05444v1 · doi: 10.48550/arxiv.1502.05444 · pith_short_12: UNE4WZYNN4O6 · pith_short_16: UNE4WZYNN4O6XIQP · pith_short_8: UNE4WZYN

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/UNE4WZYNN4O6XIQPOMWAEHYJFR \
  | 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: a349cb670d6f1deba20f732c021f092c52a31db156c5eed770ef992e5f6d2117

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dec33e1acd6d9cc8ea224cdab3ec312d06d5e17a9a7ccdd0ac8ed10d0772a194",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2015-02-18T23:52:09Z",
    "title_canon_sha256": "3004b2643aa760f33f0256415b34d100c22339fd40ef27c9f36dc42bc52f1df5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.05444",
    "kind": "arxiv",
    "version": 1
  }
}