Pith Number

pith:7BXJKMO7

pith:2021:7BXJKMO7U634EBWLBBF6542RTR

not attested not anchored not stored refs pending

Hybrid integrated low noise linearly chirped Frequency Modulated Continuous Wave laser source based on self-injection to external cavity

Hongwei Chen, Hongxiang Jia, Liwei Tang, Minghua Chen, Shuai Shao, Sigang Yang

arxiv:2104.07309 v1 · 2021-04-15 · 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{7BXJKMO7U634EBWLBBF6542RTR}

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	2026-07-05T03:14:54.992295Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f86e9531dfa7b7c206cb084beef3519c749929ebc6db02637791d0266e79a2f7

Aliases

arxiv: 2104.07309 · arxiv_version: 2104.07309v1 · doi: 10.48550/arxiv.2104.07309 · pith_short_12: 7BXJKMO7U634 · pith_short_16: 7BXJKMO7U634EBWL · pith_short_8: 7BXJKMO7

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/7BXJKMO7U634EBWLBBF6542RTR \
  | 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: f86e9531dfa7b7c206cb084beef3519c749929ebc6db02637791d0266e79a2f7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8d4adc2214c5318adb3534778abd78730711eaec97ca26c5a7620894778318a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2021-04-15T08:37:26Z",
    "title_canon_sha256": "ca9c95e613d7a38715b27737ecc066b40d6cf84513394a6dd8dbde44df329669"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.07309",
    "kind": "arxiv",
    "version": 1
  }
}