Pith Number

pith:QVUMLKFZ

pith:2019:QVUMLKFZA6MFH365UQ5Z4RWIUD

not attested not anchored not stored refs pending

Four-wave mixing and enhanced analogue Hawking effect in a nonlinear optical waveguide

Charles Ciret, Renaud Parentani, Scott Robertson, Serge Massar, Simon-Pierre Gorza

arxiv:1902.04352 v2 · 2019-02-12 · physics.optics · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QVUMLKFZA6MFH365UQ5Z4RWIUD}

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	2026-05-17T23:47:58.108923Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8568c5a8b9079853efdda43b9e46c8a0f5bfeb60b7383f52ff289dfa6229fb1c

Aliases

arxiv: 1902.04352 · arxiv_version: 1902.04352v2 · doi: 10.48550/arxiv.1902.04352 · pith_short_12: QVUMLKFZA6MF · pith_short_16: QVUMLKFZA6MFH365 · pith_short_8: QVUMLKFZ

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/QVUMLKFZA6MFH365UQ5Z4RWIUD \
  | 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: 8568c5a8b9079853efdda43b9e46c8a0f5bfeb60b7383f52ff289dfa6229fb1c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd3b306953fb0262f29fcffa8f1241e7cb3e64d00298493fa284f67af0285b92",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2019-02-12T12:16:35Z",
    "title_canon_sha256": "f236a82c73f612b8c87088618f3ddde4aff8d034e912e92575d224aa38566fcf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.04352",
    "kind": "arxiv",
    "version": 2
  }
}