Pith Number

pith:ZNIQE3LW

pith:2005:ZNIQE3LWDOCNF6Z2ONXWMC4NLV

not attested not anchored not stored refs pending

Twin-photon techniques for photo-detector calibration

G. Brida, M. Genovese, M. Gramegna

arxiv:quant-ph/0505227 v1 · 2005-05-31 · 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{ZNIQE3LWDOCNF6Z2ONXWMC4NLV}

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	2026-05-18T01:37:57.795970Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cb51026d761b84d2fb3a736f660b8d5d4d95f45eb725605b9fe22044f428dfc4

Aliases

arxiv: quant-ph/0505227 · arxiv_version: quant-ph/0505227v1 · doi: 10.48550/arxiv.quant-ph/0505227 · pith_short_12: ZNIQE3LWDOCN · pith_short_16: ZNIQE3LWDOCNF6Z2 · pith_short_8: ZNIQE3LW

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/ZNIQE3LWDOCNF6Z2ONXWMC4NLV \
  | 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: cb51026d761b84d2fb3a736f660b8d5d4d95f45eb725605b9fe22044f428dfc4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "706909cbbdf35e318066707d227b49d13a3155e7efb2655e11eaa91655faf057",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2005-05-31T15:08:30Z",
    "title_canon_sha256": "e328c314834f0723f730d9c6ee0077194d1d82ad5e755157a03e21d780681271"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0505227",
    "kind": "arxiv",
    "version": 1
  }
}