Pith Number

pith:P3OMFYW5

pith:2021:P3OMFYW53JJRXJQS42QH3SGVMP

not attested not anchored not stored refs pending

Massive star formation in the Carina nebula complex and Gum 31 -- II. a cloud-cloud collision in Gum 31

Akio Ohama, Atsushi Nishimura, Hidetoshi Sano, Katsuhiro Hayashi, Kengo Tachihara, Kisetsu Tsuge, Mikito Kohno, Rei Enokiya, Rin I. Yamada, Shinji Fujita, Takahiro Ohno, Yasuo Fukui, Yumiko Yamane

arxiv:2107.06671 v2 · 2021-07-13 · 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{P3OMFYW53JJRXJQS42QH3SGVMP}

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	2026-07-05T03:02:17.095917Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7edcc2e2ddda531ba612e6a07dc8d563fd7bd416888fbac407106d4a31b4dbfb

Aliases

arxiv: 2107.06671 · arxiv_version: 2107.06671v2 · doi: 10.48550/arxiv.2107.06671 · pith_short_12: P3OMFYW53JJR · pith_short_16: P3OMFYW53JJRXJQS · pith_short_8: P3OMFYW5

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/P3OMFYW53JJRXJQS42QH3SGVMP \
  | 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: 7edcc2e2ddda531ba612e6a07dc8d563fd7bd416888fbac407106d4a31b4dbfb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "78cd2949819570c8e49a5ee0277cf5170f919431563241804c11119937717b3c",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-07-13T08:18:32Z",
    "title_canon_sha256": "81dbe7259f242f2a2a0b24bdf4073a36e9f500973647d8400b2cafa812e41be3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.06671",
    "kind": "arxiv",
    "version": 2
  }
}