Pith Number

pith:WIUX6E7B

pith:2020:WIUX6E7BNK2OU4L7A7RXTDPGEH

not attested not anchored not stored refs pending

The R136 star cluster dissected with Hubble Space Telescope/STIS. II. Physical properties of the most massive stars in R136

Alex de Koter, Artemio Herrero, Daniel J. Lennon, Fabian R. N. Schneider, Goetz Graefener, Jesus Maiz Apellaniz, Joachim M. Bestenlehner, Joachim Puls, Jorick S. Vink, Norbert Langer, Paul A. Crowther, Saida M. Caballero-Nieves, Sarah A. Brands, Sergio Simon-Diaz

arxiv:2009.05136 v1 · 2020-09-10 · 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{WIUX6E7BNK2OU4L7A7RXTDPGEH}

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	2026-07-05T01:47:05.747299Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b2297f13e16ab4ea717f07e3798de621ce179703b88e5c791af94ada8160b6bf

Aliases

arxiv: 2009.05136 · arxiv_version: 2009.05136v1 · doi: 10.48550/arxiv.2009.05136 · pith_short_12: WIUX6E7BNK2O · pith_short_16: WIUX6E7BNK2OU4L7 · pith_short_8: WIUX6E7B

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/WIUX6E7BNK2OU4L7A7RXTDPGEH \
  | 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: b2297f13e16ab4ea717f07e3798de621ce179703b88e5c791af94ada8160b6bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ba59e89058e18c2f4d8f406f57ae2c54ee556d5f217dbf2d6d2610eb2b2950e",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2020-09-10T20:16:12Z",
    "title_canon_sha256": "9931945b8cd3c9b6323adb063370b623173460f1a5122a6b118cb844713fb15d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.05136",
    "kind": "arxiv",
    "version": 1
  }
}