Pith Number

pith:VQWH57K4

pith:2014:VQWH57K4ET67GF6DASDJLAWDKW

not attested not anchored not stored refs pending

Feasibility considerations of a soft-x-ray distributed feedback laser pumped by an x-ray free electron laser

Jean-Michel Andr\'e (LCPMR), Karine Le Guen (LCPMR), Philippe Jonnard (LCPMR)

arxiv:1406.6001 v1 · 2014-06-23 · 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{VQWH57K4ET67GF6DASDJLAWDKW}

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	2026-05-18T02:45:39.813291Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac2c7efd5c24fdf317c304869582c35587a8506e849c8cc5ed8e333807186341

Aliases

arxiv: 1406.6001 · arxiv_version: 1406.6001v1 · doi: 10.48550/arxiv.1406.6001 · pith_short_12: VQWH57K4ET67 · pith_short_16: VQWH57K4ET67GF6D · pith_short_8: VQWH57K4

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/VQWH57K4ET67GF6DASDJLAWDKW \
  | 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: ac2c7efd5c24fdf317c304869582c35587a8506e849c8cc5ed8e333807186341

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1d778bac6905e9c5c3e4e514d004f4813f5d9a028de169f3747b94ed85322e78",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2014-06-23T17:42:18Z",
    "title_canon_sha256": "96130c5fe0e202e6def1400160b09f59883ee554ee58c4a93abdf3adc86b6d35"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.6001",
    "kind": "arxiv",
    "version": 1
  }
}