Pith Number

pith:WZGNHUNF

pith:2022:WZGNHUNFI3E2CET7BNJCMS6BYG

not attested not anchored not stored refs pending

Testing The Existence of Single Photons

Asad Khan, Quynh M. Nguyen

arxiv:2209.06136 v1 · 2022-09-13 · quant-ph · physics.data-an

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WZGNHUNFI3E2CET7BNJCMS6BYG}

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	2026-07-05T04:57:20.398791Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b64cd3d1a546c9a1127f0b52264bc1c18125e9389d551398373fd08870753854

Aliases

arxiv: 2209.06136 · arxiv_version: 2209.06136v1 · doi: 10.48550/arxiv.2209.06136 · pith_short_12: WZGNHUNFI3E2 · pith_short_16: WZGNHUNFI3E2CET7 · pith_short_8: WZGNHUNF

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/WZGNHUNFI3E2CET7BNJCMS6BYG \
  | 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: b64cd3d1a546c9a1127f0b52264bc1c18125e9389d551398373fd08870753854

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "adac0e91db6cd5437a103835e91b86209bbd8a2a95056c035bd33510dcd1e353",
    "cross_cats_sorted": [
      "physics.data-an"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2022-09-13T16:28:25Z",
    "title_canon_sha256": "32f3b7f40aff68a766084f82a9d75ed9f62efb60f2aba1e6a1ac2442c046f287"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2209.06136",
    "kind": "arxiv",
    "version": 1
  }
}