Pith Number

pith:OL6BUN5O

pith:2020:OL6BUN5OWD5OYFOXHE2NPRRDXJ

not attested not anchored not stored refs pending

The mass assembly of high-redshift black holes

Marta Volonteri, Olmo Piana, Pratika Dayal, Tirthankar Roy Choudhury

arxiv:2009.13505 v2 · 2020-09-28 · 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{OL6BUN5OWD5OYFOXHE2NPRRDXJ}

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

Gravitational waves and cosmic boundary

Receipt and verification

First computed	2026-07-05T01:48:55.704334Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

72fc1a37aeb0faec15d73934d7c623ba5ca2a55dc5af5a3754462865c183ba6e

Aliases

arxiv: 2009.13505 · arxiv_version: 2009.13505v2 · doi: 10.48550/arxiv.2009.13505 · pith_short_12: OL6BUN5OWD5O · pith_short_16: OL6BUN5OWD5OYFOX · pith_short_8: OL6BUN5O

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/OL6BUN5OWD5OYFOXHE2NPRRDXJ \
  | 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: 72fc1a37aeb0faec15d73934d7c623ba5ca2a55dc5af5a3754462865c183ba6e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cef8248c7daa0e04d2f3cbf84fd09e49b673cfd02fd8970a46383f8fa1f7aaec",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-09-28T17:55:28Z",
    "title_canon_sha256": "1ca8c883e978f467b48136fa21f6f3eab291df0d9122a9135ccc1716244dbf28"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.13505",
    "kind": "arxiv",
    "version": 2
  }
}