Pith Number

pith:QRL6PQEZ

pith:2021:QRL6PQEZR4YFNZ6VXI5UTWSSVH

not attested not anchored not stored refs pending

Non-linear self-driven spectral tuning of Extreme Ultraviolet Femtosecond Pulses in monoatomic materials

Alberto Simoncig, Alessandra Virga, Andrea Marini, Carino Ferrante, Carlo Spezzani, Claudio Masciovecchio, Emiliano Principi, Giovanni Batignani, Giuseppe Fumero, Laura Foglia, Riccardo Mincigrucci, Tullio Scopigno

arxiv:2104.09385 v1 · 2021-04-19 · 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{QRL6PQEZR4YFNZ6VXI5UTWSSVH}

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	2026-07-05T04:12:34.686974Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8457e7c0998f3056e7d5ba3b49da52a9dfab1b0029e9729bbc8b5e333bd982f2

Aliases

arxiv: 2104.09385 · arxiv_version: 2104.09385v1 · doi: 10.48550/arxiv.2104.09385 · pith_short_12: QRL6PQEZR4YF · pith_short_16: QRL6PQEZR4YFNZ6V · pith_short_8: QRL6PQEZ

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/QRL6PQEZR4YFNZ6VXI5UTWSSVH \
  | 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: 8457e7c0998f3056e7d5ba3b49da52a9dfab1b0029e9729bbc8b5e333bd982f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a238eda9e3fded0f45c11e87e723e4ad4fcd66672893741c03c67ae451edb16c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2021-04-19T15:18:30Z",
    "title_canon_sha256": "5d12eea4686fe9b6b81d3bf69fea4081b8b6cb7edb25de1c5279e362ce7a72ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.09385",
    "kind": "arxiv",
    "version": 1
  }
}