Pith Number

pith:CHKRYD5R

pith:2011:CHKRYD5RVFGPWVZZIYFMOS7YQU

not attested not anchored not stored refs pending

Chandra X-ray spectroscopy of the very early O supergiant HD 93129A: constraints on wind shocks and the mass-loss rate

4), 5), Alex W. Fullerton (7), Baltimore County (5) Caltech, Bartol Research Institute (7) Space Telescope Science Institute), David H. Cohen (1), Department of Physics (6) University of Delaware, Emma E. Wollman (1, James P. MacArthur (1), Jon O. Sundqvist (6), Marc Gagn\'e (2), Maurice A. Leutenegger (3, Stanley P. Owocki (6) ((1) Swarthmore College (2) West Chester University (3) NASA/Goddard Space Flight Center (4) CRESST, University of Maryland

arxiv:1104.4786 v1 · 2011-04-25 · 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{CHKRYD5RVFGPWVZZIYFMOS7YQU}

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	2026-05-18T02:02:15.322493Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

11d51c0fb1a94cfb5739460ac74bf88519878a02bfba660d13193b9de63076c3

Aliases

arxiv: 1104.4786 · arxiv_version: 1104.4786v1 · doi: 10.48550/arxiv.1104.4786 · pith_short_12: CHKRYD5RVFGP · pith_short_16: CHKRYD5RVFGPWVZZ · pith_short_8: CHKRYD5R

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/CHKRYD5RVFGPWVZZIYFMOS7YQU \
  | 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: 11d51c0fb1a94cfb5739460ac74bf88519878a02bfba660d13193b9de63076c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e875abe22ef3df0f374e88ed64762c728897623e470ea2a63cbff4d41d28b23",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-04-25T20:00:01Z",
    "title_canon_sha256": "eee707b4e90579b716df9972d1e0bde0feaef2a1f40bbc9fc1992cf10cc5287f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.4786",
    "kind": "arxiv",
    "version": 1
  }
}