Pith Number

pith:VC2LNSDQ

pith:2020:VC2LNSDQFPJBJ4JZIRMX6MTOXI

not attested not anchored not stored refs pending

Ultra-short-pulse high-average-power Megahertz-repetition-rate coherent extreme-ultraviolet light source

A. Kirsche, H. Stark, J. Buldt, J. Limpert, J. Rothhardt, M. Gebhardt, R. Klas, S. H\"Adrich

arxiv:2012.11244 v1 · 2020-12-21 · 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{VC2LNSDQFPJBJ4JZIRMX6MTOXI}

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	2026-07-05T02:46:11.504884Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8b4b6c8702bd214f13944597f326eba0dd0bfd5b3d71bd0ff2c90918d52ab90

Aliases

arxiv: 2012.11244 · arxiv_version: 2012.11244v1 · doi: 10.48550/arxiv.2012.11244 · pith_short_12: VC2LNSDQFPJB · pith_short_16: VC2LNSDQFPJBJ4JZ · pith_short_8: VC2LNSDQ

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/VC2LNSDQFPJBJ4JZIRMX6MTOXI \
  | 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: a8b4b6c8702bd214f13944597f326eba0dd0bfd5b3d71bd0ff2c90918d52ab90

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d9f6e1f436f27d37f3228e2a1b95d5afb10a54558b423d8fb73bf5a35275832",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2020-12-21T10:48:41Z",
    "title_canon_sha256": "98d05c51e9872e66c330b920e2f838f13033f01c110e90af984dd1f1c45d4b42"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.11244",
    "kind": "arxiv",
    "version": 1
  }
}