Pith Number

pith:UVRDCLZB

pith:2015:UVRDCLZBV7T26RMDY5ALUNQEWK

not attested not anchored not stored refs pending

Measuring the brightness of classical noise dominated light at the shot noise limit?

Richard Lieu, T.W.B. Kibble

arxiv:1509.01868 v2 · 2015-09-07 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UVRDCLZBV7T26RMDY5ALUNQEWK}

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	2026-05-18T01:33:15.079166Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a562312f21afe7af4583c740ba3604b29f3a15c077310514777a67def98b6eee

Aliases

arxiv: 1509.01868 · arxiv_version: 1509.01868v2 · doi: 10.48550/arxiv.1509.01868 · pith_short_12: UVRDCLZBV7T2 · pith_short_16: UVRDCLZBV7T26RMD · pith_short_8: UVRDCLZB

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/UVRDCLZBV7T26RMDY5ALUNQEWK \
  | 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: a562312f21afe7af4583c740ba3604b29f3a15c077310514777a67def98b6eee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "187a3bceb9bffff8e22f58989ed43ac5be8a65448466974e08ae3f3368b22744",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2015-09-07T00:19:46Z",
    "title_canon_sha256": "792ea028ac505c59b10d8ad53e2a689499488c5364d8f0fc002e7b17bfffe71d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.01868",
    "kind": "arxiv",
    "version": 2
  }
}