Pith Number

pith:5GK7C4LN

pith:2023:5GK7C4LNG36YEUYM4DDD3UXAMN

not attested not anchored not stored refs pending

The host dark matter haloes of the first quasars

Newcastle University (Newcastle)), Tiago Costa (Max-Planck-Institute for Astrophysics (Garching)

arxiv:2308.12987 v2 · 2023-08-24 · astro-ph.GA · 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{5GK7C4LNG36YEUYM4DDD3UXAMN}

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.

Cited by

1 paper in Pith

Before its time: a remarkably evolved protocluster core at z=7.88

Receipt and verification

First computed	2026-07-05T08:22:33.057173Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e995f1716d36fd82530ce0c63dd2e0636038f72db3c40d09bf68229664d212d3

Aliases

arxiv: 2308.12987 · arxiv_version: 2308.12987v2 · doi: 10.48550/arxiv.2308.12987 · pith_short_12: 5GK7C4LNG36Y · pith_short_16: 5GK7C4LNG36YEUYM · pith_short_8: 5GK7C4LN

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/5GK7C4LNG36YEUYM4DDD3UXAMN \
  | 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: e995f1716d36fd82530ce0c63dd2e0636038f72db3c40d09bf68229664d212d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "36b8a2c32cc0297df775997a3a11415eb16c5cb3c0693100475b4c334e1d689f",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2023-08-24T18:00:00Z",
    "title_canon_sha256": "7f689b75a71ffa59d757084a14700bd08e25cee06698b8b12b2875a114678baa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2308.12987",
    "kind": "arxiv",
    "version": 2
  }
}