Pith Number

pith:UVVXYMJQ

pith:2009:UVVXYMJQU5QUD6JGOPN5SRKZTF

not attested not anchored not stored refs pending

Eliminating Spectral Distinguishability in Ultrafast Spontaneous Parametric Down-conversion

Antia Lamas-Linares, Christian Kurtsiefer, Hou Shun Poh, Ivan Marcikic, Jiaqing Lim

arxiv:0905.3849 v1 · 2009-05-23 · 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{UVVXYMJQU5QUD6JGOPN5SRKZTF}

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	2026-05-18T04:23:46.658157Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a56b7c3130a76141f92673dbd9455999617474262992b64e85aec1add1847abb

Aliases

arxiv: 0905.3849 · arxiv_version: 0905.3849v1 · doi: 10.48550/arxiv.0905.3849 · pith_short_12: UVVXYMJQU5QU · pith_short_16: UVVXYMJQU5QUD6JG · pith_short_8: UVVXYMJQ

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/UVVXYMJQU5QUD6JGOPN5SRKZTF \
  | 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: a56b7c3130a76141f92673dbd9455999617474262992b64e85aec1add1847abb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa5f724160f5ab50380abf1ccda45ef6999a26c69ffd51d32ce167a9ec3bd1ea",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-05-23T20:58:28Z",
    "title_canon_sha256": "1ef2bf727bfa0d23704ac1fa6b955b942316dc42704eaecdf86a92d1388d8bd3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.3849",
    "kind": "arxiv",
    "version": 1
  }
}