Pith Number

pith:O2FQ6YOM

pith:2013:O2FQ6YOMEOIVJO6CWQK36JS4KX

not attested not anchored not stored refs pending

Direct Spectro-Temporal Characterization of Femtosecond Extreme-Ultraviolet Pulses

Beno\^it Mahieu, David Gauthier, Giovanni De Ninno

arxiv:1304.7257 v2 · 2013-04-26 · 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{O2FQ6YOMEOIVJO6CWQK36JS4KX}

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	2026-05-18T01:50:21.261106Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

768b0f61cc239154bbc2b415bf265c55cd4df31bd9e8bf199785d2ac2a247cb7

Aliases

arxiv: 1304.7257 · arxiv_version: 1304.7257v2 · doi: 10.48550/arxiv.1304.7257 · pith_short_12: O2FQ6YOMEOIV · pith_short_16: O2FQ6YOMEOIVJO6C · pith_short_8: O2FQ6YOM

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/O2FQ6YOMEOIVJO6CWQK36JS4KX \
  | 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: 768b0f61cc239154bbc2b415bf265c55cd4df31bd9e8bf199785d2ac2a247cb7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c1e50c182abf6913c9f09d8ea4b92bd8d736361cc31f818b10a95cf7579a116",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2013-04-26T19:25:30Z",
    "title_canon_sha256": "c9c18237d4f0e54eb9798331f5dde8a4bc1e19ae7de502929f8e3f8d996eeb77"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.7257",
    "kind": "arxiv",
    "version": 2
  }
}