Pith Number

pith:XB3C7USF

pith:2025:XB3C7USFHQKI7XE2L5MKTKZ5QG

not attested not anchored not stored refs pending

Fully stabilized Er fiber comb at 1 GHz by harmonic modelocking

Inc.), Jacob Lampen, Jie Jiang, Kevin F. Lee, Martin E. Fermann (IMRA America, Peng Li

arxiv:2507.00233 v1 · 2025-06-30 · 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{XB3C7USFHQKI7XE2L5MKTKZ5QG}

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	2026-07-05T11:30:04.873845Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b8762fd2453c148fdc9a5f58a9ab3d81a6c58ea7b51b861866269ff737d62fb5

Aliases

arxiv: 2507.00233 · arxiv_version: 2507.00233v1 · doi: 10.48550/arxiv.2507.00233 · pith_short_12: XB3C7USFHQKI · pith_short_16: XB3C7USFHQKI7XE2 · pith_short_8: XB3C7USF

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/XB3C7USFHQKI7XE2L5MKTKZ5QG \
  | 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: b8762fd2453c148fdc9a5f58a9ab3d81a6c58ea7b51b861866269ff737d62fb5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6fc67158b973bd97933af9ddada93451c023c86ed9ed0157989322ab553c6742",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2025-06-30T20:04:25Z",
    "title_canon_sha256": "cc911d49f5244e0a49c610df0b3dc63ad3cbee4503fbb278bf77196cea32fb88"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.00233",
    "kind": "arxiv",
    "version": 1
  }
}