Pith Number

pith:2JELKQWL

pith:2021:2JELKQWL5SDFQQLJS5NIIFMO6F

not attested not anchored not stored refs pending

Empirical mass-loss rates and clumping properties of Galactic early-type O supergiants

A. de Koter, C. Hawcroft, F. A. Driessen, H. Sana, J.C. Bouret, J.O. Sundqvist, J. Puls, L. Mahy, M. Abdul-Masih, S. A. Brands

arxiv:2108.08340 v1 · 2021-08-18 · 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{2JELKQWL5SDFQQLJS5NIIFMO6F}

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	2026-07-05T03:34:32.634119Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d248b542cbec86584169975a84158ef171395b0a6455453534df56ec675e4028

Aliases

arxiv: 2108.08340 · arxiv_version: 2108.08340v1 · doi: 10.48550/arxiv.2108.08340 · pith_short_12: 2JELKQWL5SDF · pith_short_16: 2JELKQWL5SDFQQLJ · pith_short_8: 2JELKQWL

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/2JELKQWL5SDFQQLJS5NIIFMO6F \
  | 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: d248b542cbec86584169975a84158ef171395b0a6455453534df56ec675e4028

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1418ccf46df2dba19ab260f011ed0a01ec8b5daaad48763cf38824efb150643",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2021-08-18T18:32:14Z",
    "title_canon_sha256": "53d486e88f9f98a7a25b9c6f29495ca7cac658d371cc283a4e5681f9dddbbe94"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.08340",
    "kind": "arxiv",
    "version": 1
  }
}