Pith Number

pith:7LQE2PKL

pith:2021:7LQE2PKLNKYYSSVMWYX7KD6PI4

not attested not anchored not stored refs pending

A forecast of the sensitivity on the measurement of the optical depth to reionization with the GroundBIRD experiment

Chiko Otani, Eunil Won, Hiroki Kutsuma, Junya Suzuki, Kyungmin Lee, Masashi Hazumi, Mike W. Peel, Osamu Tajima, Ricardo T. G\'enova-Santos, Shugo Oguri, Shunsuke Honda, Yoshinori Sueno

arxiv:2102.03210 v2 · 2021-02-05 · astro-ph.CO · hep-ex

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7LQE2PKLNKYYSSVMWYX7KD6PI4}

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	2026-07-05T09:15:25.169753Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fae04d3d4b6ab1894aacb62ff50fcf470348ea7b0abe03736df260c47cd65d21

Aliases

arxiv: 2102.03210 · arxiv_version: 2102.03210v2 · doi: 10.48550/arxiv.2102.03210 · pith_short_12: 7LQE2PKLNKYY · pith_short_16: 7LQE2PKLNKYYSSVM · pith_short_8: 7LQE2PKL

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/7LQE2PKLNKYYSSVMWYX7KD6PI4 \
  | 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: fae04d3d4b6ab1894aacb62ff50fcf470348ea7b0abe03736df260c47cd65d21

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b0a0be106a919af6eb89cf35ebe0ada9748ff1fd82e534093a533c2489ed0cd",
    "cross_cats_sorted": [
      "hep-ex"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2021-02-05T14:52:05Z",
    "title_canon_sha256": "84e68fb62c5c3ab4205f7d1306e34938fad5b6723c782e84bd1751774d360b38"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.03210",
    "kind": "arxiv",
    "version": 2
  }
}