Pith Number

pith:2L72IHKC

pith:2017:2L72IHKCTNUBKFE4FBWE3ZMWBW

not attested not anchored not stored refs pending

2.6mJ/100Hz CEP stable near-single-cycle 4{\mu}m laser based on OPCPA and hollow-core-fiber compression

Beijie Shao, Ding Wang, Hongpeng Su, Pengfei Wang, Ruirui Zhao, Ruxin Li, Shuai Li, Wang Cheng, Wenkai Li, Yanyan Li, Yujie Peng, Yuxin Leng, Zhizhan Xu

arxiv:1712.07327 v1 · 2017-12-20 · 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{2L72IHKCTNUBKFE4FBWE3ZMWBW}

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	2026-05-18T00:15:19.179070Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2ffa41d429b6815149c286c4de5960daca89c725a5013c50bd41d7af0fe4ee4

Aliases

arxiv: 1712.07327 · arxiv_version: 1712.07327v1 · doi: 10.48550/arxiv.1712.07327 · pith_short_12: 2L72IHKCTNUB · pith_short_16: 2L72IHKCTNUBKFE4 · pith_short_8: 2L72IHKC

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/2L72IHKCTNUBKFE4FBWE3ZMWBW \
  | 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: d2ffa41d429b6815149c286c4de5960daca89c725a5013c50bd41d7af0fe4ee4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c9c656066fcc249361f8943ed4c918327cf7acaa47da29ad8087f81a3b48f85f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2017-12-20T05:38:45Z",
    "title_canon_sha256": "a7e2006c482fae090f74644892c86fa3875b4f27555d8c5e171da7b58b00c6f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.07327",
    "kind": "arxiv",
    "version": 1
  }
}