Pith Number

pith:2ACRWYNF

pith:2019:2ACRWYNFINHWERLSYHVBPMCJUQ

not attested not anchored not stored refs pending

Optics-free focusing down to micrometer spot size and spectral filtering of XUV harmonics

C. P\'ejot, C. Valentin, D. Descamps, E. Constant, E. M\'evel, F. Burgy, F. Catoire, K. Veyrinas

arxiv:1912.12707 v1 · 2019-12-29 · 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{2ACRWYNFINHWERLSYHVBPMCJUQ}

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	2026-07-05T00:29:02.719916Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d0051b61a5434f624572c1ea17b049a4259647b1a712ad83ddc933fe92a12ead

Aliases

arxiv: 1912.12707 · arxiv_version: 1912.12707v1 · doi: 10.48550/arxiv.1912.12707 · pith_short_12: 2ACRWYNFINHW · pith_short_16: 2ACRWYNFINHWERLS · pith_short_8: 2ACRWYNF

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/2ACRWYNFINHWERLSYHVBPMCJUQ \
  | 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: d0051b61a5434f624572c1ea17b049a4259647b1a712ad83ddc933fe92a12ead

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c807781f2014c89d70c3e05d5486f24aab72277330698efb5f69f31d83da4f5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2019-12-29T18:41:25Z",
    "title_canon_sha256": "1579efa8f34528201439b1642a6d26e33c533bd7cf32f59315d773827bf05c76"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.12707",
    "kind": "arxiv",
    "version": 1
  }
}