Pith Number

pith:URLEH32G

pith:2018:URLEH32GD7KM3J5R3JOXGMEQRD

not attested not anchored not stored refs pending

Direct Phase Locking of a Ti:Sapphire Optical Frequency Comb to a Remote Optical Frequency Standard

Eunmi Chae, Kei Sugiyama, Kosuke Yoshioka, Kota Nakashima, Takuya Ikeda

arxiv:1807.08683 v2 · 2018-07-19 · 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{URLEH32GD7KM3J5R3JOXGMEQRD}

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	2026-05-17T23:42:30.082810Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a45643ef461fd4cda7b1da5d73309088de4db194b12dd8b15face66b8a382ea6

Aliases

arxiv: 1807.08683 · arxiv_version: 1807.08683v2 · doi: 10.48550/arxiv.1807.08683 · pith_short_12: URLEH32GD7KM · pith_short_16: URLEH32GD7KM3J5R · pith_short_8: URLEH32G

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/URLEH32GD7KM3J5R3JOXGMEQRD \
  | 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: a45643ef461fd4cda7b1da5d73309088de4db194b12dd8b15face66b8a382ea6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66caf85ec1c7f6f62ec8f689c569399b467282167a80429e31206775187d3494",
    "cross_cats_sorted": [
      "physics.atom-ph",
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ins-det",
    "submitted_at": "2018-07-19T09:40:00Z",
    "title_canon_sha256": "ceecb0973d2b0e0699712d44ce767a447fe00e99ec42710bb21b624e6c083a83"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.08683",
    "kind": "arxiv",
    "version": 2
  }
}