Pith Number

pith:4G4O6ZRV

pith:2012:4G4O6ZRVH6IKRR7LDESXJS2DYN

not attested not anchored not stored refs pending

Radio & Optical Interferometry: Basic Observing Techniques and Data Analysis

John D. Monnier, Ronald J. Allen

arxiv:1201.2963 v1 · 2012-01-13 · 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{4G4O6ZRVH6IKRR7LDESXJS2DYN}

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	2026-05-18T02:04:05.255713Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1b8ef66353f90a8c7eb192574cb43c352391431b4d50f1fa1562a416b94a7b6

Aliases

arxiv: 1201.2963 · arxiv_version: 1201.2963v1 · doi: 10.48550/arxiv.1201.2963 · pith_short_12: 4G4O6ZRVH6IK · pith_short_16: 4G4O6ZRVH6IKRR7L · pith_short_8: 4G4O6ZRV

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/4G4O6ZRVH6IKRR7LDESXJS2DYN \
  | 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: e1b8ef66353f90a8c7eb192574cb43c352391431b4d50f1fa1562a416b94a7b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a45dcb8f0c4a7f9a2bbb1962d41b571604c0b9e92e24a46b2d27dbae3849f4d6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2012-01-13T21:52:19Z",
    "title_canon_sha256": "fd56022572a7e4dea9a6ef48f37044a8c5d6aa22dd2dc80c57e965931ec799a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.2963",
    "kind": "arxiv",
    "version": 1
  }
}