Pith Number

pith:QWNDQRRE

pith:2017:QWNDQRRE2OKRUTZTVRG7NZDKF6

not attested not anchored not stored refs pending

Resolving the circumstellar environment of the Galactic B[e] supergiant star MWC 137 from large to small scales

Cristina E. Cappa, Diah S. Gunawan, Dieter H. Nickeler, Grigoris Maravelias, Lydia S. Cidale, Marcelo Borges Fernandes, Maria L. Arias, Mary E. Oksala, Michaela Kraus, Michel Cure, Miguel Santander-Garcia, Nicolas U. Duronea, Tiina Liimets

arxiv:1709.06439 v1 · 2017-09-19 · 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{QWNDQRRE2OKRUTZTVRG7NZDKF6}

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	2026-05-18T00:32:05.033082Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

859a384624d3951a4f33ac4df6e46a2f9983b88f9aebaf1aecc67d465482df65

Aliases

arxiv: 1709.06439 · arxiv_version: 1709.06439v1 · doi: 10.48550/arxiv.1709.06439 · pith_short_12: QWNDQRRE2OKR · pith_short_16: QWNDQRRE2OKRUTZT · pith_short_8: QWNDQRRE

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/QWNDQRRE2OKRUTZTVRG7NZDKF6 \
  | 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: 859a384624d3951a4f33ac4df6e46a2f9983b88f9aebaf1aecc67d465482df65

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0b8abb91b052cc6feb13ffe0747d1382e3d580f7cfa0331cc8a5182b54c79bd",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-09-19T14:10:28Z",
    "title_canon_sha256": "6afbd7032291773b86f2795244c00aeda7d63284d1ad8fe5b32b03040b3970cd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.06439",
    "kind": "arxiv",
    "version": 1
  }
}