Pith Number

pith:QMEFMULV

pith:2012:QMEFMULVBD4PWUCLQRHDUI4T7G

not attested not anchored not stored refs pending

Radial Velocities of Galactic O-Type Stars. II. Single-lined Spectroscopic Binaries

D.R. Gies, M.V. McSwain, S.J. Williams, T.C. Hillwig, W. Huang

arxiv:1209.2135 v1 · 2012-09-10 · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QMEFMULVBD4PWUCLQRHDUI4T7G}

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	2026-05-18T01:54:37.368185Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

830856517508f8fb504b844e3a2393f9be2cf497402919c6320619632efe8392

Aliases

arxiv: 1209.2135 · arxiv_version: 1209.2135v1 · doi: 10.48550/arxiv.1209.2135 · pith_short_12: QMEFMULVBD4P · pith_short_16: QMEFMULVBD4PWUCL · pith_short_8: QMEFMULV

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/QMEFMULVBD4PWUCLQRHDUI4T7G \
  | 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: 830856517508f8fb504b844e3a2393f9be2cf497402919c6320619632efe8392

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a3e791c77d15a85be699d183502fc42c702f366a099782fb3334caf084a805c5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-09-10T20:06:31Z",
    "title_canon_sha256": "9955e9fecac284d927099005fc42965b67566b5dabd83dcb6cbc0c94415c4e66"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.2135",
    "kind": "arxiv",
    "version": 1
  }
}