Pith Number

pith:VOLCIM6D

pith:2026:VOLCIM6DR7VJIUUIJVQZ4YO5R5

not attested not anchored not stored refs pending

The nature of Cloud-9: a compact core embedded in a diffuse envelope

Chuan-Peng Zhang, Jinlong Xu, Ming Zhu, Ruilei Zhou

arxiv:2607.06712 v1 · 2026-07-07 · 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{VOLCIM6DR7VJIUUIJVQZ4YO5R5}

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	2026-07-09T00:19:24.244758Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ab962433c38fea9452884d619e61dd8f5bdd02f3a47f4f86c4c2810fe14390b4

Aliases

arxiv: 2607.06712 · arxiv_version: 2607.06712v1 · doi: 10.48550/arxiv.2607.06712 · pith_short_12: VOLCIM6DR7VJ · pith_short_16: VOLCIM6DR7VJIUUI · pith_short_8: VOLCIM6D

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/VOLCIM6DR7VJIUUIJVQZ4YO5R5 \
  | 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: ab962433c38fea9452884d619e61dd8f5bdd02f3a47f4f86c4c2810fe14390b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "acab2a8bc0b81a57a0f002a225dc9cb61167dd8d8345d2f40c5975b5beea0794",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-07-07T18:27:23Z",
    "title_canon_sha256": "0bc517cfb82f646eee40e2a3865ae236f61ef4952560b7478d819e4e259868f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.06712",
    "kind": "arxiv",
    "version": 1
  }
}