Pith Number

pith:23QGLFCH

pith:2015:23QGLFCH55SVRDKKNWQWCVAWNG

not attested not anchored not stored refs pending

The foreground wedge and 21 cm BAO surveys

Christopher M. Hirata, Hee-Jong Seo

arxiv:1508.06503 v2 · 2015-08-26 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{23QGLFCH55SVRDKKNWQWCVAWNG}

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	2026-05-18T01:21:54.490293Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d6e0659447ef65588d4a6da16154166983e6d1a9b121bb4d4060cb061027b316

Aliases

arxiv: 1508.06503 · arxiv_version: 1508.06503v2 · doi: 10.48550/arxiv.1508.06503 · pith_short_12: 23QGLFCH55SV · pith_short_16: 23QGLFCH55SVRDKK · pith_short_8: 23QGLFCH

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/23QGLFCH55SVRDKKNWQWCVAWNG \
  | 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: d6e0659447ef65588d4a6da16154166983e6d1a9b121bb4d4060cb061027b316

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b812370e59ae2d325ddd2f267275da2477b9a23d2bbb62a19f76cec7345dbf6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2015-08-26T14:15:17Z",
    "title_canon_sha256": "7475e3d0f8d2324967d595cafb887c13a52160cb9514b7152920e16c6a0ed3a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.06503",
    "kind": "arxiv",
    "version": 2
  }
}