Pith Number

pith:R4NJDHAB

pith:2012:R4NJDHABC5QZWI7BUU4KPG6O2W

not attested not anchored not stored refs pending

Towards optical intensity interferometry for high angular resolution stellar astrophysics

Paul D. Nunez

arxiv:1209.1205 v1 · 2012-09-06 · 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{R4NJDHABC5QZWI7BUU4KPG6O2W}

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	2026-05-18T03:46:06.258806Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f1a919c0117619b23e1a538a79bced5b501c68b319300cc7c6d3263bbe8bd76

Aliases

arxiv: 1209.1205 · arxiv_version: 1209.1205v1 · doi: 10.48550/arxiv.1209.1205 · pith_short_12: R4NJDHABC5QZ · pith_short_16: R4NJDHABC5QZWI7B · pith_short_8: R4NJDHAB

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/R4NJDHABC5QZWI7BUU4KPG6O2W \
  | 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: 8f1a919c0117619b23e1a538a79bced5b501c68b319300cc7c6d3263bbe8bd76

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da863f955d35af3d5962f2a3d526e4603b262e68a087bb7ebf67fe55a4564351",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2012-09-06T07:35:38Z",
    "title_canon_sha256": "09cc757e0931f3fe0c893ada9bb38b8730f55102193a480785672e595f3dfefe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.1205",
    "kind": "arxiv",
    "version": 1
  }
}