Pith Number

pith:A3CAV7LS

pith:2012:A3CAV7LS2KUVLEHLRTLFUSOCBM

not attested not anchored not stored refs pending

Absolute calibration of a wideband antenna and spectrometer for sky noise spectral index measurements

Alan E. E. Rogers, Judd D. Bowman

arxiv:1209.1106 v1 · 2012-09-05 · 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{A3CAV7LS2KUVLEHLRTLFUSOCBM}

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	2026-05-18T01:54:39.865744Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

06c40afd72d2a95590eb8cd65a49c20b143412d40330a3edabcd64a40789f5cc

Aliases

arxiv: 1209.1106 · arxiv_version: 1209.1106v1 · doi: 10.48550/arxiv.1209.1106 · pith_short_12: A3CAV7LS2KUV · pith_short_16: A3CAV7LS2KUVLEHL · pith_short_8: A3CAV7LS

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/A3CAV7LS2KUVLEHLRTLFUSOCBM \
  | 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: 06c40afd72d2a95590eb8cd65a49c20b143412d40330a3edabcd64a40789f5cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9569417d2b37390ec6bc612e18e2560b1fa315536c222e521abf18eae1c25673",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2012-09-05T20:02:13Z",
    "title_canon_sha256": "46a79e5ff0ffe8d15204d5d40ef5f9da54f2b73148024536f624790960225448"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.1106",
    "kind": "arxiv",
    "version": 1
  }
}