Pith Number

pith:N5AWW5QF

pith:2026:N5AWW5QFRECHXBD65XNMH7VYVF

not attested not anchored not stored refs pending

Global 21cm Measurement Calibration Methodology

Cambridge, Cavendish Laboratory, Christian J. Kirkham, Dirk I. L. de Villiers, Electronic Engineering, Eloy de Lera Acedo (Astrophysics Group, Kavli Institute for Cosmology, Martin Bucher (Laboratoire APC, Saurabh Pegwal (Department of Electrical, South Africa), Stellenbosch, Stellenbosch University, UK), Universit\'e Paris Cit\'e/CNRS)

arxiv:2607.26741 v1 · 2026-07-29 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{N5AWW5QFRECHXBD65XNMH7VYVF}

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	2026-07-30T01:22:09.673486Z
Builder	pith-number-builder-2026-05-17-v1
Signature	unsigned_v0
Schema	pith-number/v1.0

Canonical hash

6f416b760589047b847eeddac3feb8a95ac1a4a1e949c82af56bd93bc4c3c822

Aliases

arxiv: 2607.26741 · arxiv_version: 2607.26741v1 · doi: 10.48550/arxiv.2607.26741 · pith_short_12: N5AWW5QFRECH · pith_short_16: N5AWW5QFRECHXBD6 · pith_short_8: N5AWW5QF

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/N5AWW5QFRECHXBD65XNMH7VYVF \
  | 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: 6f416b760589047b847eeddac3feb8a95ac1a4a1e949c82af56bd93bc4c3c822

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d2317d81179ae48c64206780141a2e5469f04e6d8e4ab2bfe07a2dc05e91a188",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2026-07-29T10:33:31Z",
    "title_canon_sha256": "eb8e8398736aa3ad61942eecc59e818c248136d44d322094a21ed405fe5c2aa3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.26741",
    "kind": "arxiv",
    "version": 1
  }
}