Pith Number

pith:PQG7CHAE

pith:2026:PQG7CHAESRQG567YNRKNXCO5H4

not attested not anchored not stored refs pending

Revisiting gravitational instability in protostellar discs with improved radiative cooling models

Alison K. Young, Farzana Meru, Ken Rice, Richard Booth

arxiv:2608.13058 v1 · 2026-08-13 · astro-ph.EP · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PQG7CHAESRQG567YNRKNXCO5H4}

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	2026-08-14T01:00:14.583228Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c0df11c0494606efbf86c54db89dd3f3d3ac20554874e6a1c8f2d4e4d6022b4

Aliases

arxiv: 2608.13058 · arxiv_version: 2608.13058v1 · doi: 10.48550/arxiv.2608.13058 · pith_short_12: PQG7CHAESRQG · pith_short_16: PQG7CHAESRQG567Y · pith_short_8: PQG7CHAE

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/PQG7CHAESRQG567YNRKNXCO5H4 \
  | 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: 7c0df11c0494606efbf86c54db89dd3f3d3ac20554874e6a1c8f2d4e4d6022b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "10c6e1fea0f0a928117e722e7a19b09bb98d9a9a395846949e8da5be49f72a7c",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2026-08-13T10:21:17Z",
    "title_canon_sha256": "d7e136d1b1e5842bb2cf7ffd020752bd339bfbfaab8f09aa26448e48e98a91b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.13058",
    "kind": "arxiv",
    "version": 1
  }
}