Pith Number

pith:IZT6AV53

pith:2010:IZT6AV53XCZJZZ2DA3456T5AUS

not attested not anchored not stored refs pending

Signals of the cosmological reionization in the radio sky through C and O fine structure lines

Masahiro Kawasaki, Motohiko Kusakabe

arxiv:1004.1087 v2 · 2010-04-07 · 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{IZT6AV53XCZJZZ2DA3456T5AUS}

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	2026-05-18T02:24:17.100839Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4667e057bbb8b29ce74306f9df4fa0a4ac047336e05a7d7e17e1e99275fba517

Aliases

arxiv: 1004.1087 · arxiv_version: 1004.1087v2 · doi: 10.48550/arxiv.1004.1087 · pith_short_12: IZT6AV53XCZJ · pith_short_16: IZT6AV53XCZJZZ2D · pith_short_8: IZT6AV53

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/IZT6AV53XCZJZZ2DA3456T5AUS \
  | 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: 4667e057bbb8b29ce74306f9df4fa0a4ac047336e05a7d7e17e1e99275fba517

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "09cc2819fa9a97b51431934f05bdc1b3a557f4886a4d9769f66f7d322b6fd0c0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-04-07T13:36:45Z",
    "title_canon_sha256": "7f0adcf9f6758308b26f0e062046b77fa581a4e351b0b85e097f07462a389228"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.1087",
    "kind": "arxiv",
    "version": 2
  }
}