Pith Number

pith:H4RQ2PBE

pith:2013:H4RQ2PBEIC2X2BH33HAJG2TH6T

not attested not anchored not stored refs pending

Intensity interferometry for observation of dark objects

Baris I. Erkmen, Dmitry V. Strekalov, Nan Yu

arxiv:1309.3004 v2 · 2013-09-11 · physics.optics · 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{H4RQ2PBEIC2X2BH33HAJG2TH6T}

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	2026-05-18T03:06:21.679725Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f230d3c2440b57d04fbd9c0936a67f4cac3d584fb3263f92392269452956f93

Aliases

arxiv: 1309.3004 · arxiv_version: 1309.3004v2 · doi: 10.48550/arxiv.1309.3004 · pith_short_12: H4RQ2PBEIC2X · pith_short_16: H4RQ2PBEIC2X2BH3 · pith_short_8: H4RQ2PBE

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/H4RQ2PBEIC2X2BH33HAJG2TH6T \
  | 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: 3f230d3c2440b57d04fbd9c0936a67f4cac3d584fb3263f92392269452956f93

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c48fae0f42f05a226ccb5e1a97f3865b8859c3b08c19b8b17aad2f8719fa2a1f",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2013-09-11T23:52:52Z",
    "title_canon_sha256": "796f09102f45164feaf8cbe4ef8edc1a30aa0b783029b1bae23b2b28d4e8c176"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.3004",
    "kind": "arxiv",
    "version": 2
  }
}