Pith Number

pith:FT2EHWRF

pith:2021:FT2EHWRFKGNOGVKDGS7M3OUWN5

not attested not anchored not stored refs pending

Apercal -- The Apertif Calibration Pipeline

A. H. W. M. Coolen, A. Kutkin, A. Mika, A. R. Offringa, B. Adebahr, B. S. Frank, D.-J. Pisano, D. Lucero, D. van der Schuur, D. Vohl, E. K. Adams, E. Orru, F. M. Maccagni, G. M. Loose, H. Denes, H. Mulder, J. M. van der Hulst, J. van Leeuwen, J. Verstappen, J. Ziemke, K. M. Hess, L. C. Oostrum, L. D. Connor, M. V. Ivashina, N. P. E. Vilchez, R. Morganti, R. Schulz, R. Smits, S. Damstra, S. J. Wijnholds, T. J. Dijkema, T. Oosterloo, V. A. Moss, W. A. van Cappellen, W. J. G. de Blok, Y. Maan

arxiv:2112.03722 v1 · 2021-12-07 · 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{FT2EHWRFKGNOGVKDGS7M3OUWN5}

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.

Cited by

1 paper in Pith

The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics

Receipt and verification

First computed	2026-07-05T03:38:49.132947Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2cf443da25519ae3554334becdba966f450407b52c2978dc75508715e3f96f8e

Aliases

arxiv: 2112.03722 · arxiv_version: 2112.03722v1 · doi: 10.48550/arxiv.2112.03722 · pith_short_12: FT2EHWRFKGNO · pith_short_16: FT2EHWRFKGNOGVKD · pith_short_8: FT2EHWRF

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/FT2EHWRFKGNOGVKDGS7M3OUWN5 \
  | 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: 2cf443da25519ae3554334becdba966f450407b52c2978dc75508715e3f96f8e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d7a8bb2685fd3d9343ea797f242e770cceeb32894e17f50ee599af6334072da7",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2021-12-07T14:22:23Z",
    "title_canon_sha256": "12e42291a4344d587f2f630c87d6f3fa6965531b4f7bc73f6fada5e8a99a7935"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.03722",
    "kind": "arxiv",
    "version": 1
  }
}