Pith Number

pith:D4AR647Z

pith:2024:D4AR647ZQZF4ZQWJZC3J4JZLDI

not attested not anchored not stored refs pending

Cold Quasar Investigation: Comparing Star Formation Rates to Black Hole Growth

Allison Kirkpatrick, Brandon Coleman, Sasha Mintz

arxiv:2403.07196 v1 · 2024-03-11 · 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{D4AR647ZQZF4ZQWJZC3J4JZLDI}

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	2026-07-05T07:55:00.519129Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f011f73f9864bccc2c9c8b69e272b1a0a60f3e1c40ca929ce12cb46f9f70a40

Aliases

arxiv: 2403.07196 · arxiv_version: 2403.07196v1 · doi: 10.48550/arxiv.2403.07196 · pith_short_12: D4AR647ZQZF4 · pith_short_16: D4AR647ZQZF4ZQWJ · pith_short_8: D4AR647Z

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/D4AR647ZQZF4ZQWJZC3J4JZLDI \
  | 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: 1f011f73f9864bccc2c9c8b69e272b1a0a60f3e1c40ca929ce12cb46f9f70a40

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f0cc18dabe43f80ae2abf69446ce5cf110909ee178d3a14429ac52bc9e2786f8",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2024-03-11T22:38:07Z",
    "title_canon_sha256": "284dd9b537a232a574b2ae7f2fc16e7d025c2347166acc307bb188049200c57f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2403.07196",
    "kind": "arxiv",
    "version": 1
  }
}