Pith Number

pith:PEXI5V2D

pith:2019:PEXI5V2DP3EWR3S22IZBBREDCH

not attested not anchored not stored refs pending

Pulse contrast enhancement via non-collinear sum-frequency generation with the signal and idler of an optical parametric amplifier

A. Fry, E. Cunningham, E. Galtier, G. Dyer, J. Robinson

arxiv:1905.01584 v2 · 2019-05-05 · 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{PEXI5V2DP3EWR3S22IZBBREDCH}

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	2026-05-17T23:42:19.425629Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

792e8ed7437ec968ee5ad23210c48311df649516d0287b2afe517bc54309d1c3

Aliases

arxiv: 1905.01584 · arxiv_version: 1905.01584v2 · doi: 10.48550/arxiv.1905.01584 · pith_short_12: PEXI5V2DP3EW · pith_short_16: PEXI5V2DP3EWR3S2 · pith_short_8: PEXI5V2D

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/PEXI5V2DP3EWR3S22IZBBREDCH \
  | 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: 792e8ed7437ec968ee5ad23210c48311df649516d0287b2afe517bc54309d1c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f919f0ae3a02dfac9f0142026aec636d591ee4df68107ceda9546af81c772ba",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2019-05-05T02:27:53Z",
    "title_canon_sha256": "66c0c4ace40c5522a76d1c10ab058934010f5453fdd3fb9995fcde47594729b1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.01584",
    "kind": "arxiv",
    "version": 2
  }
}