Pith Number

pith:U4Y5Y2X3

pith:2018:U4Y5Y2X3V5FIL2OKYWK56HODIW

not attested not anchored not stored refs pending

Advanced Gain Calibration Techniques in Radio Interferometry

Crystal L. Brogan, Ed B. Fomalont, Todd R. Hunter

arxiv:1805.05266 v1 · 2018-05-14 · 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{U4Y5Y2X3V5FIL2OKYWK56HODIW}

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	2026-05-18T00:16:03.577528Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a731dc6afbaf4a85e9cac595df1dc345ad7c1a431f307b7effde18bbbeb0131b

Aliases

arxiv: 1805.05266 · arxiv_version: 1805.05266v1 · doi: 10.48550/arxiv.1805.05266 · pith_short_12: U4Y5Y2X3V5FI · pith_short_16: U4Y5Y2X3V5FIL2OK · pith_short_8: U4Y5Y2X3

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/U4Y5Y2X3V5FIL2OKYWK56HODIW \
  | 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: a731dc6afbaf4a85e9cac595df1dc345ad7c1a431f307b7effde18bbbeb0131b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "29780d892ffe7693dfc61395088c6d2bbce35a202e92d1d0577a7df85ba21ccd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-05-14T16:32:03Z",
    "title_canon_sha256": "4b880d554a0bf2d7f6642a91920552efffd887ad04772596694dece5d4be002b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.05266",
    "kind": "arxiv",
    "version": 1
  }
}