Pith Number

pith:O4CKZUOC

pith:2019:O4CKZUOCBN6U53OFRUH3VITYMN

not attested not anchored not stored refs pending

Radio Interferometric Calibration Using a Complex Student's t-distribution and Wirtinger Derivatives

Hertzog Landman Bester, Jonathan Kenyon, Oleg Smirnov, Trienko Grobler, Ulrich Armel Mbou Sob

arxiv:1910.08136 v1 · 2019-10-17 · 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{O4CKZUOCBN6U53OFRUH3VITYMN}

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	2026-07-05T00:13:05.717664Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7704acd1c20b7d4eedc58d0fbaa278637cc55022256b7bf6614592bcd2ff52bf

Aliases

arxiv: 1910.08136 · arxiv_version: 1910.08136v1 · doi: 10.48550/arxiv.1910.08136 · pith_short_12: O4CKZUOCBN6U · pith_short_16: O4CKZUOCBN6U53OF · pith_short_8: O4CKZUOC

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/O4CKZUOCBN6U53OFRUH3VITYMN \
  | 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: 7704acd1c20b7d4eedc58d0fbaa278637cc55022256b7bf6614592bcd2ff52bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "92b677cb5cbfdf35002519bbbd75939de23040a20a958d4934414c59fced91ad",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2019-10-17T19:58:12Z",
    "title_canon_sha256": "30979d2bdb71122a92b1b702e644255e4a079416e4e849c74afa9dbaa3ecd73a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.08136",
    "kind": "arxiv",
    "version": 1
  }
}