Pith Number

pith:EXMECELX

pith:2021:EXMECELXPBUIAOLJVGSOTLI4ZQ

not attested not anchored not stored refs pending

Ultraviolet Spectropolarimetry with Polstar: Massive Star Binary Colliding Winds

Alexandre David-Uraz, Andrew G. Fullard, Carol E. Jones, Desmond John Hillier, Geraldine J. Peters, Heloise Stevance, Jamie R. Lomax, Jennifer L. Hoffman, Jorick S. Vink, Kenneth Gayley, Nicole St-Louis, Noel D. Richardson, Paul A. Scowen, Richard Ignace, Tomer Shenar, Yael Naze

arxiv:2111.11552 v2 · 2021-11-22 · astro-ph.SR · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EXMECELXPBUIAOLJVGSOTLI4ZQ}

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	2026-07-05T03:41:42.166990Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25d84111777868803969a9a4e9ad1ccc17bf2590d52a0e21de2b0a5da955e2bc

Aliases

arxiv: 2111.11552 · arxiv_version: 2111.11552v2 · doi: 10.48550/arxiv.2111.11552 · pith_short_12: EXMECELXPBUI · pith_short_16: EXMECELXPBUIAOLJ · pith_short_8: EXMECELX

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/EXMECELXPBUIAOLJVGSOTLI4ZQ \
  | 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: 25d84111777868803969a9a4e9ad1ccc17bf2590d52a0e21de2b0a5da955e2bc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "119b8fcf6145baa30578c2b273bf5c71bb3c514f61520b0457e6f597c0f7965f",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2021-11-22T21:58:28Z",
    "title_canon_sha256": "b6d47ca0ca57c3550b358287ee763487ab84cbeaf75fdc836b1c867667b15b0a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.11552",
    "kind": "arxiv",
    "version": 2
  }
}