Pith Number

pith:ALKBLL35

pith:2018:ALKBLL35HC6USLOF7BDAXWBTPL

not attested not anchored not stored refs pending

Constraints on reionisation from the z=7.5 QSO ULASJ1342+0928

Andrei Mesinger, Bradley Greig, Eduardo Ba\~nados

arxiv:1807.01593 v1 · 2018-07-04 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ALKBLL35HC6USLOF7BDAXWBTPL}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-17T23:55:14.174688Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

02d415af7d38bd492dc5f8460bd8337ad62d626cfca18b01fea55c992f7b8356

Aliases

arxiv: 1807.01593 · arxiv_version: 1807.01593v1 · doi: 10.48550/arxiv.1807.01593 · pith_short_12: ALKBLL35HC6U · pith_short_16: ALKBLL35HC6USLOF · pith_short_8: ALKBLL35

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/ALKBLL35HC6USLOF7BDAXWBTPL \
  | 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: 02d415af7d38bd492dc5f8460bd8337ad62d626cfca18b01fea55c992f7b8356

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0193d345b6d685fb214a4dbe25a1e281d5ab06c57587cae6485ffb8c6e22dac5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2018-07-04T14:01:50Z",
    "title_canon_sha256": "2d8101ec5b4881f55f107ace7fb24a8a8ea1de8a3650589951dca6af7a0debbe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.01593",
    "kind": "arxiv",
    "version": 1
  }
}