Pith Number

pith:7PDNZ2BU

pith:2022:7PDNZ2BUTUARBOXNL5CP3I7QN5

not attested not anchored not stored refs pending

Optical Properties of C$-$rich ($^{12}$C, SiC and FeC) Dust Layered Structure of Massive Stars

Chunhua Zhu, Guoliang L\"u, Jujia Zhang, Mengli Yao, Mengqiu Long, Mingming Li, Ruiqing Wu, Wujin Chen, Xiaojiao Zhang, Yunpeng Wang, Zhaojun Wang, Zhao Wang

arxiv:2202.00260 v1 · 2022-02-01 · 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{7PDNZ2BUTUARBOXNL5CP3I7QN5}

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	2026-07-05T04:04:03.047488Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fbc6dce8349d0110baed5f44fda3f06f72f88662cbaf079645d81f1ca16ef38c

Aliases

arxiv: 2202.00260 · arxiv_version: 2202.00260v1 · doi: 10.48550/arxiv.2202.00260 · pith_short_12: 7PDNZ2BUTUAR · pith_short_16: 7PDNZ2BUTUARBOXN · pith_short_8: 7PDNZ2BU

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/7PDNZ2BUTUARBOXNL5CP3I7QN5 \
  | 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: fbc6dce8349d0110baed5f44fda3f06f72f88662cbaf079645d81f1ca16ef38c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7dce0d50303c02fb1bc5e682698e90f531d7e0e3584c0903291badb425e0ae6c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2022-02-01T07:40:06Z",
    "title_canon_sha256": "8803fedbf30466daf4776c49c48dda0cbc00c2984400aedd4fec097722e0f5bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2202.00260",
    "kind": "arxiv",
    "version": 1
  }
}