Pith Number

pith:2VZQIPWS

pith:2010:2VZQIPWS4RVOZY3BCK7QITPZLI

not attested not anchored not stored refs pending

Biphoton compression in standard optical fiber: exact numerical calculation

A. Meda, G. Brida, G. Kh. Kitaeva, I. P. Degiovanni, M. Genovese, M. V. Chekhova, O. A. Shumilkina

arxiv:1002.3891 v1 · 2010-02-22 · 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{2VZQIPWS4RVOZY3BCK7QITPZLI}

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	2026-05-18T02:08:58.573283Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d573043ed2e46aece36112bf044df95a19baa29d377751902691aa21a55b42aa

Aliases

arxiv: 1002.3891 · arxiv_version: 1002.3891v1 · doi: 10.48550/arxiv.1002.3891 · pith_short_12: 2VZQIPWS4RVO · pith_short_16: 2VZQIPWS4RVOZY3B · pith_short_8: 2VZQIPWS

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/2VZQIPWS4RVOZY3BCK7QITPZLI \
  | 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: d573043ed2e46aece36112bf044df95a19baa29d377751902691aa21a55b42aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1105e63079c3b883b6a542f1cf37965d54fd2f5f3176123ebf3d071b73dce35c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-02-22T16:11:52Z",
    "title_canon_sha256": "62c3cd5d715f52e56e3da296e3973963c4893bdd08fb38f013cd30a053cd395a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.3891",
    "kind": "arxiv",
    "version": 1
  }
}