Pith Number

pith:UL7WOVJZ

pith:2011:UL7WOVJZPONZZD62B4K2CPPZWV

not attested not anchored not stored refs pending

All photons are equal but some photons are more equal than others

Andrea Aiello, Falk T\"oppel, Gerd Leuchs

arxiv:1108.5036 v2 · 2011-08-25 · quant-ph · physics.optics

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UL7WOVJZPONZZD62B4K2CPPZWV}

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	2026-05-18T03:42:55.900428Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2ff6755397b9b9c8fda0f15a13df9b553798f2afdbe5a41b39e894e331d0273

Aliases

arxiv: 1108.5036 · arxiv_version: 1108.5036v2 · doi: 10.48550/arxiv.1108.5036 · pith_short_12: UL7WOVJZPONZ · pith_short_16: UL7WOVJZPONZZD62 · pith_short_8: UL7WOVJZ

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/UL7WOVJZPONZZD62B4K2CPPZWV \
  | 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: a2ff6755397b9b9c8fda0f15a13df9b553798f2afdbe5a41b39e894e331d0273

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e4b21f6fdb2b8e0e54361a34ac2c68677b3f6810e562c455a1e3585b6f7e18b",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2011-08-25T08:27:22Z",
    "title_canon_sha256": "27ca0c103794a59084984a901110496bd8c72f7c623905d74620fa8f3133fef5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.5036",
    "kind": "arxiv",
    "version": 2
  }
}