Pith Number

pith:GQBRVPUL

pith:2015:GQBRVPUL2JWARP3N22SDMIJBL7

not attested not anchored not stored refs pending

Ptychographic reconstruction of attosecond pulses

A. Ludwig, L. Gallmann, M.H. Br\"ugmann, M. Lucchini, T. Feurer, U. Keller

arxiv:1508.07714 v2 · 2015-08-31 · 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{GQBRVPUL2JWARP3N22SDMIJBL7}

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	2026-05-18T01:26:57.297376Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

34031abe8bd26c08bf6dd6a43621215fc00975d98ee8bd4990f76594fccf4299

Aliases

arxiv: 1508.07714 · arxiv_version: 1508.07714v2 · doi: 10.48550/arxiv.1508.07714 · pith_short_12: GQBRVPUL2JWA · pith_short_16: GQBRVPUL2JWARP3N · pith_short_8: GQBRVPUL

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/GQBRVPUL2JWARP3N22SDMIJBL7 \
  | 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: 34031abe8bd26c08bf6dd6a43621215fc00975d98ee8bd4990f76594fccf4299

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8459a69df6238dbc36f91ff2e4745f92fee43255ace6b0a6c4ef533714e5b3ac",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2015-08-31T08:16:31Z",
    "title_canon_sha256": "0425b6d26cf8d25575b597c66017110f259f8b8c1d05ceb050eb03cf10dac016"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.07714",
    "kind": "arxiv",
    "version": 2
  }
}