Pith Number

pith:ILRX5MKV

pith:2019:ILRX5MKVVIP4PKEKSYLRV25F5Y

not attested not anchored not stored refs pending

The host galaxies of z=7 quasars: predictions from the BlueTides simulation

J. Stuart B. Wyithe, Jussi K. Kuusisto, Madeline A. Marshall, Rupert A.C. Croft, Stephen Wilkins, Tiziana Di Matteo, Yueying Ni

arxiv:1912.03428 v4 · 2019-12-07 · 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{ILRX5MKVVIP4PKEKSYLRV25F5Y}

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	2026-07-05T01:42:32.466044Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42e37eb155aa1fc7a88a96171aeba5ee00747e9463f0f8e2873cf1735ddca71b

Aliases

arxiv: 1912.03428 · arxiv_version: 1912.03428v4 · doi: 10.48550/arxiv.1912.03428 · pith_short_12: ILRX5MKVVIP4 · pith_short_16: ILRX5MKVVIP4PKEK · pith_short_8: ILRX5MKV

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/ILRX5MKVVIP4PKEKSYLRV25F5Y \
  | 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: 42e37eb155aa1fc7a88a96171aeba5ee00747e9463f0f8e2873cf1735ddca71b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "52f722b76571e321d9cd62f55a420befe00b6d81252f4a7d0b14fe003531b553",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-12-07T03:51:47Z",
    "title_canon_sha256": "031b09b6a52c37d7bf2cbbd2a17c527f5aca3184b773685e8b66094ba062a88a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.03428",
    "kind": "arxiv",
    "version": 4
  }
}