Pith Number

pith:UA5AOUR2

pith:2018:UA5AOUR22NUQKTKNOCB3CHM6IY

not attested not anchored not stored refs pending

The ultimate frontier of 21cm cosmology

Christopher M. Hirata, Patrick C. Breysse, Yacine Ali-Ha\"imoud

arxiv:1804.10626 v1 · 2018-04-27 · 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{UA5AOUR22NUQKTKNOCB3CHM6IY}

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	2026-05-18T00:06:59.970616Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a03a07523ad369054d4d7083b11d9e460ecb0da63b596e60100320067ee1b620

Aliases

arxiv: 1804.10626 · arxiv_version: 1804.10626v1 · doi: 10.48550/arxiv.1804.10626 · pith_short_12: UA5AOUR22NUQ · pith_short_16: UA5AOUR22NUQKTKN · pith_short_8: UA5AOUR2

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/UA5AOUR22NUQKTKNOCB3CHM6IY \
  | 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: a03a07523ad369054d4d7083b11d9e460ecb0da63b596e60100320067ee1b620

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28f6d5622b8483a567973395aa84c95aeb73e45b1662eac250a807dd741e5c94",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2018-04-27T18:00:03Z",
    "title_canon_sha256": "6ccaa1fab062b2817f565aaa172106a817852dbea672bee9739f3bbffa714f0e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.10626",
    "kind": "arxiv",
    "version": 1
  }
}