Pith Number

pith:SIWPRQU2

pith:2020:SIWPRQU2VU32CD6NRGKHGNOAHM

not attested not anchored not stored refs pending

Single Photon Randomness based on a Defect Center in Diamond

Ilja Gerhardt, Johannes Greiner, J\"org Wrachtrup, Xing Chen

arxiv:2007.07522 v1 · 2020-07-15 · 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{SIWPRQU2VU32CD6NRGKHGNOAHM}

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	2026-07-05T01:19:29.624499Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

922cf8c29aad37a10fcd89947335c03b03741e66b8a85183a6c79a3be5541d68

Aliases

arxiv: 2007.07522 · arxiv_version: 2007.07522v1 · doi: 10.48550/arxiv.2007.07522 · pith_short_12: SIWPRQU2VU32 · pith_short_16: SIWPRQU2VU32CD6N · pith_short_8: SIWPRQU2

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/SIWPRQU2VU32CD6NRGKHGNOAHM \
  | 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: 922cf8c29aad37a10fcd89947335c03b03741e66b8a85183a6c79a3be5541d68

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31cebee4dca0f80000c86f735f213f09b18d1174889df47c4ab991a3e183d430",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2020-07-15T07:43:16Z",
    "title_canon_sha256": "8eaaf33e42fbc050cabbeb09188195fd6abeab6517e43e3fd8b138d417a330b0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.07522",
    "kind": "arxiv",
    "version": 1
  }
}