Pith Number

pith:XVHFGFCH

pith:2014:XVHFGFCHCKNXBLYYCBH4Z7SDUW

not attested not anchored not stored refs pending

Tunable sub-20 fs pulses from a 500 kHz OPCPA with 15 W average power based on an all-ytterbium laser

Jan Ahrens, Marcel Krenz, Martin Wolf, Michele Puppin, Oliver Prochnow, Ralph Ernstorfer, Thomas Binhammer, Uwe Morgner, Yunpei Deng

arxiv:1409.6642 v1 · 2014-09-23 · 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{XVHFGFCHCKNXBLYYCBH4Z7SDUW}

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	2026-05-18T01:59:38.490442Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd4e531447129b70af18104fccfe43a5a195210f731cfbd9168512b764b0fbe5

Aliases

arxiv: 1409.6642 · arxiv_version: 1409.6642v1 · doi: 10.48550/arxiv.1409.6642 · pith_short_12: XVHFGFCHCKNX · pith_short_16: XVHFGFCHCKNXBLYY · pith_short_8: XVHFGFCH

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/XVHFGFCHCKNXBLYYCBH4Z7SDUW \
  | 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: bd4e531447129b70af18104fccfe43a5a195210f731cfbd9168512b764b0fbe5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77d61f3e49dd759e158c36375806cc1f8bc6bc215f227d1c73f430fbec55d744",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2014-09-23T15:46:46Z",
    "title_canon_sha256": "74a83e289b076ff7b919be241d329982d8f5b7e2d2a510a099aee00ae6e9725f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.6642",
    "kind": "arxiv",
    "version": 1
  }
}