Pith Number

pith:Q4CRDFDC

pith:2019:Q4CRDFDCMOJVGQZSOQYJPF6O4I

not attested not anchored not stored refs pending

Foregrounds and their mitigation

Emma Chapman, Vibor Jeli\'c

arxiv:1909.12369 v1 · 2019-09-26 · astro-ph.CO · astro-ph.GA · 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{Q4CRDFDCMOJVGQZSOQYJPF6O4I}

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

6 papers in Pith

Application of Machine Learning to 21 cm Cosmology

Mitigating gain calibration errors from EoR observations with SKA1-Low AA*

Application of Machine Learning to 21 cm Cosmology

Foreground Mitigation and Power Spectrum Analysis for Tianlai Full-Sky 21 cm Survey Observation

Receipt and verification

First computed	2026-07-05T00:07:38.779940Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8705119462639353433274309797cee23e5f8cea85673d7684b30ce98abe7fae

Aliases

arxiv: 1909.12369 · arxiv_version: 1909.12369v1 · doi: 10.48550/arxiv.1909.12369 · pith_short_12: Q4CRDFDCMOJV · pith_short_16: Q4CRDFDCMOJVGQZS · pith_short_8: Q4CRDFDC

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/Q4CRDFDCMOJVGQZSOQYJPF6O4I \
  | 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: 8705119462639353433274309797cee23e5f8cea85673d7684b30ce98abe7fae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e4d7b2ca0b873d04f95e9f8447cd179ac3c55edb495fe4a484d701b8e515cdb",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2019-09-26T20:11:19Z",
    "title_canon_sha256": "83831355ca26a5377fc9a6bcadc1fd715fb9ade36ecb3a396c5a2891b588ede2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.12369",
    "kind": "arxiv",
    "version": 1
  }
}