Pith Number

pith:QAMKEMYX

pith:2015:QAMKEMYX2Y2KZX4XKONMBIZYRH

not attested not anchored not stored refs pending

Stable gain-switched thulium fiber laser with 140 nm tuning range

Edmund Kelleher, Fengqiu Wang, Guoxiang Guo, Shining Zhu, Yafei Meng, Yao Li, Yongbing Xu

arxiv:1508.07585 v1 · 2015-08-30 · 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{QAMKEMYX2Y2KZX4XKONMBIZYRH}

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	2026-05-18T01:19:15.963030Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8018a23317d634acdf97539ac0a33889edb3ec10d288c1c085735dee10e4c119

Aliases

arxiv: 1508.07585 · arxiv_version: 1508.07585v1 · doi: 10.48550/arxiv.1508.07585 · pith_short_12: QAMKEMYX2Y2K · pith_short_16: QAMKEMYX2Y2KZX4X · pith_short_8: QAMKEMYX

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/QAMKEMYX2Y2KZX4XKONMBIZYRH \
  | 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: 8018a23317d634acdf97539ac0a33889edb3ec10d288c1c085735dee10e4c119

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1599533084ea8b0e3eee9aea51894ec1f6260096c0f4e28b0585072fcc23c170",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2015-08-30T14:54:07Z",
    "title_canon_sha256": "4a7e98ed0524f1f3100e4e4940c230f37ccaee585803ac160dd6e2413f1a7349"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.07585",
    "kind": "arxiv",
    "version": 1
  }
}