Pith Number

pith:J6R4ZPEH

pith:2022:J6R4ZPEHIBBMABDXVP47RFY4GS

not attested not anchored not stored refs pending

Disc cloaking: Establishing a lower limit to the number density of local compact massive spheroids/bulges and the potential fate of some high-z red nuggets

Alessandro Marconi, Alister W. Graham, Benjamin L. Davis, Dexter S. -H. Hon

arxiv:2204.13408 v3 · 2022-04-28 · 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{J6R4ZPEHIBBMABDXVP47RFY4GS}

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	2026-07-05T06:07:08.431074Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4fa3ccbc874042c00477abf9f8971c34b9b5fa87a2f76dff920c448751d046e4

Aliases

arxiv: 2204.13408 · arxiv_version: 2204.13408v3 · doi: 10.48550/arxiv.2204.13408 · pith_short_12: J6R4ZPEHIBBM · pith_short_16: J6R4ZPEHIBBMABDX · pith_short_8: J6R4ZPEH

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/J6R4ZPEHIBBMABDXVP47RFY4GS \
  | 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: 4fa3ccbc874042c00477abf9f8971c34b9b5fa87a2f76dff920c448751d046e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "19a0899f57035b930b7dec25245ec9ad4c0fcda27519ac9399e818d7918f66cb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2022-04-28T10:54:38Z",
    "title_canon_sha256": "7d222e68a3bcd51f825bfab140fe12b3ab6fd0bec865e31f47b9895e1b8b99f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2204.13408",
    "kind": "arxiv",
    "version": 3
  }
}