Pith Number

pith:WBBRU6YH

pith:2015:WBBRU6YHYYTX7ZPFOL2OBYRXOV

not attested not anchored not stored refs pending

The blue supergiant MN18 and its bipolar circumstellar nebula

A.Y. Kniazev, E.K. Grebel, J. Bodensteiner, J. Greiner, J.M. Bestenlehner, L.N. Berdnikov, N. Langer, V.V. Gvaramadze, Y. Beletsky

arxiv:1508.06288 v1 · 2015-08-25 · 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{WBBRU6YHYYTX7ZPFOL2OBYRXOV}

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	2026-05-18T01:31:31.157607Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0431a7b07c6277fe5e572f4e0e237756b5df77c28048ce1b8f1bae9112b81c5

Aliases

arxiv: 1508.06288 · arxiv_version: 1508.06288v1 · doi: 10.48550/arxiv.1508.06288 · pith_short_12: WBBRU6YHYYTX · pith_short_16: WBBRU6YHYYTX7ZPF · pith_short_8: WBBRU6YH

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/WBBRU6YHYYTX7ZPFOL2OBYRXOV \
  | 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: b0431a7b07c6277fe5e572f4e0e237756b5df77c28048ce1b8f1bae9112b81c5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4fe09de82d901c493711b4c1beb30a14553d0be1080b20e0086543407a3dacb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-08-25T20:10:44Z",
    "title_canon_sha256": "e7a4dbf0d2efe05347dc47920d9750ea48b4460d227fff0a860f108cbcdb7309"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.06288",
    "kind": "arxiv",
    "version": 1
  }
}