Pith Number

pith:H7KHOXHE

pith:2025:H7KHOXHE5TJD4JDVLWYJUFME4Q

not attested not anchored not stored refs pending

Laser-driven bunch compression for ultrashort free-electron laser pulses

Ch. Gerth, Ch. Mahnke, C. Mai, E. A. Schneidmiller, Ph. Amstutz, S. Khan, W. Helml

arxiv:2508.14592 v1 · 2025-08-20 · physics.acc-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H7KHOXHE5TJD4JDVLWYJUFME4Q}

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	2026-07-05T11:56:35.089080Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3fd4775ce4ecd23e24755db09a1584e43ad0097603faf6d161469b0d5f205a6f

Aliases

arxiv: 2508.14592 · arxiv_version: 2508.14592v1 · doi: 10.48550/arxiv.2508.14592 · pith_short_12: H7KHOXHE5TJD · pith_short_16: H7KHOXHE5TJD4JDV · pith_short_8: H7KHOXHE

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/H7KHOXHE5TJD4JDVLWYJUFME4Q \
  | 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: 3fd4775ce4ecd23e24755db09a1584e43ad0097603faf6d161469b0d5f205a6f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f72578d706f3e68e99eb85b4ca1e5713c6bb968db3c359d319009d1d45e0a01c",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.acc-ph",
    "submitted_at": "2025-08-20T10:16:27Z",
    "title_canon_sha256": "18036217557547e36a36eb1e3125b0455991187f96d5c93073dd0610d3414bc9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.14592",
    "kind": "arxiv",
    "version": 1
  }
}