Pith Number

pith:PIUFT4F3

pith:2019:PIUFT4F3ZKNP3AEGZ2CZLRMXWU

not attested not anchored not stored refs pending

Joining bits and pieces of reionization history

Daniela Paoletti, Dhiraj Kumar Hazra, Fabio Finelli, George F. Smoot

arxiv:1904.01547 v2 · 2019-04-02 · astro-ph.CO · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PIUFT4F3ZKNP3AEGZ2CZLRMXWU}

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	2026-07-05T01:28:03.918759Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a2859f0bbca9afd8086ce8595c597b507a9eb5298f862764f161ac3df6fc4a4

Aliases

arxiv: 1904.01547 · arxiv_version: 1904.01547v2 · doi: 10.48550/arxiv.1904.01547 · pith_short_12: PIUFT4F3ZKNP · pith_short_16: PIUFT4F3ZKNP3AEG · pith_short_8: PIUFT4F3

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/PIUFT4F3ZKNP3AEGZ2CZLRMXWU \
  | 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: 7a2859f0bbca9afd8086ce8595c597b507a9eb5298f862764f161ac3df6fc4a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ac265141ddc38e062c7ab76958bad7651ab2bba61d71653af76cfb93b0b6c02a",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2019-04-02T17:01:46Z",
    "title_canon_sha256": "76d27e731a6d737c5219b4821d988f4da0a6be524ec61fe9b61f006088b33f79"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.01547",
    "kind": "arxiv",
    "version": 2
  }
}