Pith Number

pith:KYT27H72

pith:2026:KYT27H72BECY5ZUW7W2CSYCG4I

not attested not anchored not stored refs pending

Mapping Cosmological Signal Scales to Beam Calibration Requirements in 21cm Experiments and Implications for Near-Field Measurement

Daniel C. Jacobs

arxiv:2605.20518 v1 · 2026-05-19 · 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{KYT27H72BECY5ZUW7W2CSYCG4I}

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	2026-05-21T01:04:40.687155Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5627af9ffa09058ee696fdb4296046e20866a3caf360361b9dfb0dbb83ea3909

Aliases

arxiv: 2605.20518 · arxiv_version: 2605.20518v1 · doi: 10.48550/arxiv.2605.20518 · pith_short_12: KYT27H72BECY · pith_short_16: KYT27H72BECY5ZUW · pith_short_8: KYT27H72

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/KYT27H72BECY5ZUW7W2CSYCG4I \
  | 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: 5627af9ffa09058ee696fdb4296046e20866a3caf360361b9dfb0dbb83ea3909

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b973428e5f6f7ef4db9f928aef800224222bfe3a92478ba05c825adc2ed87799",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2026-05-19T21:38:51Z",
    "title_canon_sha256": "81e09f1eb8c413bdfb54268aade82a941e1fadc084c38d932a40c024a9669b3e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.20518",
    "kind": "arxiv",
    "version": 1
  }
}