Pith Number

pith:AS7EKUCH

pith:2014:AS7EKUCHCAUGDYUFEDUUIO3KCV

not attested not anchored not stored refs pending

Imaging with a small number of photons

Jessica Bell, Miles J. Padgett, Peter A. Morris, Reuben S. Aspden, Robert W. Boyd

arxiv:1408.6381 v1 · 2014-08-27 · 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{AS7EKUCHCAUGDYUFEDUUIO3KCV}

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	2026-05-18T01:42:12.690446Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

04be455047102861e28520e9443b6a1576c691944679c914cd328611a5461d18

Aliases

arxiv: 1408.6381 · arxiv_version: 1408.6381v1 · doi: 10.48550/arxiv.1408.6381 · pith_short_12: AS7EKUCHCAUG · pith_short_16: AS7EKUCHCAUGDYUF · pith_short_8: AS7EKUCH

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/AS7EKUCHCAUGDYUFEDUUIO3KCV \
  | 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: 04be455047102861e28520e9443b6a1576c691944679c914cd328611a5461d18

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d029d5611fc9c340d4c7b71d7e526c8975eda265120b157c498895d0405885a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2014-08-27T10:51:15Z",
    "title_canon_sha256": "6de6b22ffdb42f9a892db003882e29abfee16052c629908747a62519c70474da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.6381",
    "kind": "arxiv",
    "version": 1
  }
}