Pith Number

pith:YQ5WC4FM

pith:2025:YQ5WC4FMGPA46V2JJP4SXVBOAG

not attested not anchored not stored refs pending

A comparative analysis of GNSS-inferred precipitable water vapour at the potential sites for the Africa Millimetre Telescope

Heino Falcke, Lott Frans, Michael Backes, Tiziana Venturi

arxiv:2505.05310 v1 · 2025-05-08 · astro-ph.IM · physics.data-an

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YQ5WC4FMGPA46V2JJP4SXVBOAG}

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	2026-07-05T11:00:22.458095Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c43b6170ac33c1cf57494bf92bd42e01986aabdfd3221cc65ea95141302eb16c

Aliases

arxiv: 2505.05310 · arxiv_version: 2505.05310v1 · doi: 10.48550/arxiv.2505.05310 · pith_short_12: YQ5WC4FMGPA4 · pith_short_16: YQ5WC4FMGPA46V2J · pith_short_8: YQ5WC4FM

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/YQ5WC4FMGPA46V2JJP4SXVBOAG \
  | 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: c43b6170ac33c1cf57494bf92bd42e01986aabdfd3221cc65ea95141302eb16c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e60c444d26323ef747d473850fb4ebd98a2d5810a51a7d97ba662e5265350ce9",
    "cross_cats_sorted": [
      "physics.data-an"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2025-05-08T14:59:40Z",
    "title_canon_sha256": "f8837ab51db01f31d469409ddf0aae0b5c6b733a6feb895b5035e46b90fc80c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.05310",
    "kind": "arxiv",
    "version": 1
  }
}