Pith Number

pith:B2GDXF3Y

pith:2026:B2GDXF3YZPXQGDT7LIOZY64JPR

not attested not anchored not stored refs pending

HI envelope around the carbon star V420 Vul

Chuan-Peng Zhang, Li-yun Zhang, Xu-Jia Ouyang, Yong Zhang

arxiv:2608.06245 v1 · 2026-08-06 · astro-ph.SR · 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{B2GDXF3YZPXQGDT7LIOZY64JPR}

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	2026-08-07T01:41:02.973168Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0e8c3b9778cbef030e7f5a1d9c7b897c5712683b4d5ccb29fc15082ec81649dc

Aliases

arxiv: 2608.06245 · arxiv_version: 2608.06245v1 · doi: 10.48550/arxiv.2608.06245 · pith_short_12: B2GDXF3YZPXQ · pith_short_16: B2GDXF3YZPXQGDT7 · pith_short_8: B2GDXF3Y

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/B2GDXF3YZPXQGDT7LIOZY64JPR \
  | 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: 0e8c3b9778cbef030e7f5a1d9c7b897c5712683b4d5ccb29fc15082ec81649dc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ab9d394fbf6b1140f14ba033693436991cf7661ac7eb55e62987a372bfb73b24",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2026-08-06T16:30:03Z",
    "title_canon_sha256": "e8f4252323916c12d7882d1217959908c48945e9ec1c4c46b21b8684c5574f7c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.06245",
    "kind": "arxiv",
    "version": 1
  }
}