Pith Number

pith:UINPRQSJ

pith:2026:UINPRQSJXXENFKAMTBZDLBMPIK

not attested not anchored not stored refs pending

Do Super-Puffs Defy Core Accretion? Population-Wide Interior Structure Constraints

Alex R. Howe, Juliette Becker, Nicholas T. Marston

arxiv:2606.11330 v1 · 2026-06-09 · astro-ph.EP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UINPRQSJXXENFKAMTBZDLBMPIK}

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	2026-06-11T00:08:19.938457Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a21af8c249bdc8d2a80c987235858f42beb68066eb7dff07a55eff77eb53e976

Aliases

arxiv: 2606.11330 · arxiv_version: 2606.11330v1 · doi: 10.48550/arxiv.2606.11330 · pith_short_12: UINPRQSJXXEN · pith_short_16: UINPRQSJXXENFKAM · pith_short_8: UINPRQSJ

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/UINPRQSJXXENFKAMTBZDLBMPIK \
  | 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: a21af8c249bdc8d2a80c987235858f42beb68066eb7dff07a55eff77eb53e976

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e197fe4242dd4f966d92aac5da192c62d575362633226826b9073d52d885985",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2026-06-09T18:10:34Z",
    "title_canon_sha256": "d7295e7b3dd7c4a67c63a229f9f897bf7d58318db9f6a494c6cf6d5487032790"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.11330",
    "kind": "arxiv",
    "version": 1
  }
}