Pith Number

pith:GU44JMJV

pith:2005:GU44JMJVSNY7FQ3LIEQSVXOQLC

not attested not anchored not stored refs pending

Continuous-wave phase-sensitive parametric image amplification

A. Maitre, C. Fabre, L. Lopez, N. Treps, S. Gigan, V. Delaubert

arxiv:quant-ph/0502116 v2 · 2005-02-18 · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GU44JMJVSNY7FQ3LIEQSVXOQLC}

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	2026-07-04T16:57:30.125324Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3539c4b1359371f2c36b41212addd058aa6a2c99340fb3cbd85434a06c4d284a

Aliases

arxiv: quant-ph/0502116 · arxiv_version: quant-ph/0502116v2 · doi: 10.48550/arxiv.quant-ph/0502116 · pith_short_12: GU44JMJVSNY7 · pith_short_16: GU44JMJVSNY7FQ3L · pith_short_8: GU44JMJV

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/GU44JMJVSNY7FQ3LIEQSVXOQLC \
  | 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: 3539c4b1359371f2c36b41212addd058aa6a2c99340fb3cbd85434a06c4d284a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c18dba938469ab8f66933bcd358b7975caf616f220ec837cf48200eed3b78a1a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2005-02-18T15:38:46Z",
    "title_canon_sha256": "1efad916f712be4aefd945b35750694f4ad187df5040baba9cd297f85a42466b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0502116",
    "kind": "arxiv",
    "version": 2
  }
}