Pith Number

pith:3FHWEU7R

pith:2004:3FHWEU7R3CZD4J5OJHNBETCUWK

not attested not anchored not stored refs pending

Measurement of Coupling PDC photon sources with single-mode and multimode optical fibers

Alan Migdall, Ivo Pietro Degiovanni, Michael Ware, Stefania Castelletto, Valentina Schettini

arxiv:quant-ph/0408015 v1 · 2004-08-03 · 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{3FHWEU7R3CZD4J5OJHNBETCUWK}

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	2026-05-18T01:37:58.446210Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d94f6253f1d8b23e27ae49da124c54b288e9df61add5e9a0dd43666dd57c56b1

Aliases

arxiv: quant-ph/0408015 · arxiv_version: quant-ph/0408015v1 · doi: 10.48550/arxiv.quant-ph/0408015 · pith_short_12: 3FHWEU7R3CZD · pith_short_16: 3FHWEU7R3CZD4J5O · pith_short_8: 3FHWEU7R

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/3FHWEU7R3CZD4J5OJHNBETCUWK \
  | 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: d94f6253f1d8b23e27ae49da124c54b288e9df61add5e9a0dd43666dd57c56b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a1a3c6b7953a390694b1dfac7255af3b7ac9d2f987fd90800a59526a7adb5fd",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2004-08-03T07:57:41Z",
    "title_canon_sha256": "df77ea4a9ff921e429ee500980679fc4e20da6623fc311698506ba0861314477"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0408015",
    "kind": "arxiv",
    "version": 1
  }
}