Pith Number

pith:IPHF2CHS

pith:2018:IPHF2CHSBE2KXFZ2HCIWMUDRJH

not attested not anchored not stored refs pending

Twin-beam intensity-difference squeezing below 10 Hz

Bonnie L. Schmittberger, Kevin M. Jones, Meng-Chang Wu, Nicholas R. Brewer, Paul D. Lett, Rory W. Speirs

arxiv:1810.09589 v1 · 2018-10-22 · physics.optics · physics.atom-ph · 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{IPHF2CHSBE2KXFZ2HCIWMUDRJH}

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	2026-05-17T23:53:41.753226Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43ce5d08f20934ab973a389166507149e523388b47c315ceea78959c9e7ab4dc

Aliases

arxiv: 1810.09589 · arxiv_version: 1810.09589v1 · doi: 10.48550/arxiv.1810.09589 · pith_short_12: IPHF2CHSBE2K · pith_short_16: IPHF2CHSBE2KXFZ2 · pith_short_8: IPHF2CHS

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/IPHF2CHSBE2KXFZ2HCIWMUDRJH \
  | 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: 43ce5d08f20934ab973a389166507149e523388b47c315ceea78959c9e7ab4dc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f2c70b6724a1a2737b4ac1226994a2f86e871677f4e9ee58513cdd16df3cd9ca",
    "cross_cats_sorted": [
      "physics.atom-ph",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2018-10-22T22:58:02Z",
    "title_canon_sha256": "614c6f9cd40f78a353ade6b512438b6840b25e6f528127832a7de4a10a841e7a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.09589",
    "kind": "arxiv",
    "version": 1
  }
}