Pith Number

pith:HXN3Z7QA

pith:2013:HXN3Z7QA77POTLGMFDQVL7SBVT

not attested not anchored not stored refs pending

Robust Radio Interferometric Calibration Using the t-Distribution

S. Kazemi, S. Yatawatta

arxiv:1307.5040 v1 · 2013-07-18 · astro-ph.IM · math.OC · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HXN3Z7QA77POTLGMFDQVL7SBVT}

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	2026-05-18T01:48:42.836721Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ddbbcfe00ffdee9accc28e155fe41ace40a17f2bfa66b69ea2ddac05af49562

Aliases

arxiv: 1307.5040 · arxiv_version: 1307.5040v1 · doi: 10.48550/arxiv.1307.5040 · pith_short_12: HXN3Z7QA77PO · pith_short_16: HXN3Z7QA77POTLGM · pith_short_8: HXN3Z7QA

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/HXN3Z7QA77POTLGMFDQVL7SBVT \
  | 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: 3ddbbcfe00ffdee9accc28e155fe41ace40a17f2bfa66b69ea2ddac05af49562

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca3a88ce02df7d2067a5fe93bcb912bc8341213c1291f00ff672035ba837b6ab",
    "cross_cats_sorted": [
      "math.OC",
      "stat.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2013-07-18T18:43:49Z",
    "title_canon_sha256": "ae52ddfd4268554a178028286ce8669bdeb8d3459046e366a80218cb61217b72"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.5040",
    "kind": "arxiv",
    "version": 1
  }
}