Pith Number

pith:SLV7DYTZ

pith:2024:SLV7DYTZ2AU4XUPNPXKUZODR47

not attested not anchored not stored refs pending

An automated method for finding the most distant quasars

Boris Leistedt, Daniel J. Mortlock, Lena Lenz, Paul C. Hewett, Rhys Barnett

arxiv:2408.12770 v2 · 2024-08-23 · astro-ph.IM · 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{SLV7DYTZ2AU4XUPNPXKUZODR47}

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	2026-07-05T11:45:28.887660Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

92ebf1e279d029cbd1ed7dd54cb871e7f02d6bc89b1a88cbf97af603aaa7fbe0

Aliases

arxiv: 2408.12770 · arxiv_version: 2408.12770v2 · doi: 10.48550/arxiv.2408.12770 · pith_short_12: SLV7DYTZ2AU4 · pith_short_16: SLV7DYTZ2AU4XUPN · pith_short_8: SLV7DYTZ

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/SLV7DYTZ2AU4XUPNPXKUZODR47 \
  | 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: 92ebf1e279d029cbd1ed7dd54cb871e7f02d6bc89b1a88cbf97af603aaa7fbe0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2538ff2940018bbb80bdfdbb956c6e8a082c2ba356e04fff296a1d28b4a61d56",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2024-08-23T00:04:39Z",
    "title_canon_sha256": "b37f24941921bc1f85049c441bd299af61fe4f6011ed85b5ed25b3978d6a9210"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2408.12770",
    "kind": "arxiv",
    "version": 2
  }
}