Pith Number

pith:UKFGYBQG

pith:2009:UKFGYBQGIZHOWW57X52XVNVSQC

not attested not anchored not stored refs pending

Quantum interference of biphotons at a blazed grating

Dietmar Korn, Dirk Puhlmann, Martin Ostermeyer

arxiv:0903.2756 v1 · 2009-03-16 · 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{UKFGYBQGIZHOWW57X52XVNVSQC}

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	2026-05-18T02:14:28.011990Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a28a6c0606464eeb5bbfbf757ab6b280a88d42aa98efc3d261e0e0749209c6a2

Aliases

arxiv: 0903.2756 · arxiv_version: 0903.2756v1 · doi: 10.48550/arxiv.0903.2756 · pith_short_12: UKFGYBQGIZHO · pith_short_16: UKFGYBQGIZHOWW57 · pith_short_8: UKFGYBQG

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/UKFGYBQGIZHOWW57X52XVNVSQC \
  | 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: a28a6c0606464eeb5bbfbf757ab6b280a88d42aa98efc3d261e0e0749209c6a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce2a077f329672fd6e935f38d24855e1119a276755550c5db928ee64504646c1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-03-16T17:14:57Z",
    "title_canon_sha256": "5108f5ccab6c03ba6d030265d59e78b99203954ffcf89a8f9ad266301cec72b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.2756",
    "kind": "arxiv",
    "version": 1
  }
}