Pith Number

pith:HKUQKEWS

pith:2016:HKUQKEWSRJOUQAD4PWW7UN5POE

not attested not anchored not stored refs pending

A Spectroscopic Survey of Massive Stars in M31 and M33

Brianna M. Smart, Kathryn F. Neugent, Philip Massey

arxiv:1604.00112 v2 · 2016-04-01 · 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{HKUQKEWSRJOUQAD4PWW7UN5POE}

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	2026-05-18T01:07:16.817207Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3aa90512d28a5d48007c7dadfa37af713c6f2792ba80bf523eedbfa9a9b8ec32

Aliases

arxiv: 1604.00112 · arxiv_version: 1604.00112v2 · doi: 10.48550/arxiv.1604.00112 · pith_short_12: HKUQKEWSRJOU · pith_short_16: HKUQKEWSRJOUQAD4 · pith_short_8: HKUQKEWS

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/HKUQKEWSRJOUQAD4PWW7UN5POE \
  | 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: 3aa90512d28a5d48007c7dadfa37af713c6f2792ba80bf523eedbfa9a9b8ec32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d8e6d6b4eb7a61624ce4807c6fec1a550ad48fb5e5c635bd9cdba340581e7476",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-04-01T02:47:17Z",
    "title_canon_sha256": "4fb5b7073bafcf3858086960d0ee7b63fb17abdb44bd75f3b70b58b072e8b424"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.00112",
    "kind": "arxiv",
    "version": 2
  }
}