Pith Number

pith:NG45IBC7

pith:2009:NG45IBC72MF2EAXO4A7RYD6EGK

not attested not anchored not stored refs pending

A versatile source of polarization-entangled photons

A. Maser, C. Thiel, J. von Zanthier, R. Wiegner, U. Schilling

arxiv:0911.5115 v1 · 2009-11-26 · 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{NG45IBC72MF2EAXO4A7RYD6EGK}

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	2026-05-18T02:29:25.325978Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

69b9d4045fd30ba202eee03f1c0fc432a3697f96872ac8f4e1b3697d51e10d31

Aliases

arxiv: 0911.5115 · arxiv_version: 0911.5115v1 · doi: 10.48550/arxiv.0911.5115 · pith_short_12: NG45IBC72MF2 · pith_short_16: NG45IBC72MF2EAXO · pith_short_8: NG45IBC7

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/NG45IBC72MF2EAXO4A7RYD6EGK \
  | 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: 69b9d4045fd30ba202eee03f1c0fc432a3697f96872ac8f4e1b3697d51e10d31

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57139cca3e5d7560220e2be8e5ddf10da9efc93eb11057c2f9823090850c8be1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-11-26T16:27:35Z",
    "title_canon_sha256": "a55dafa0fa7575bbc2f249fd4788067ad24c2afdd94f31cdf82d690d61037d1f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.5115",
    "kind": "arxiv",
    "version": 1
  }
}