Pith Number

pith:XPDMQ7F3

pith:2009:XPDMQ7F3R3AUC7RVSY2HP6OFZN

not attested not anchored not stored refs pending

VLT/SINFONI time-resolved spectroscopy of the central, luminous, H-rich WN stars of R136

A. F. J. Moffat, A.-N. Chene, J. Casoli, N. St-Louis, O. Schnurr

arxiv:0905.2934 v1 · 2009-05-18 · 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{XPDMQ7F3R3AUC7RVSY2HP6OFZN}

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	2026-05-18T02:13:38.828033Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bbc6c87cbb8ec1417e35963477f9c5cb61d9cb3c5d9423f0442b416a6f8185ec

Aliases

arxiv: 0905.2934 · arxiv_version: 0905.2934v1 · doi: 10.48550/arxiv.0905.2934 · pith_short_12: XPDMQ7F3R3AU · pith_short_16: XPDMQ7F3R3AUC7RV · pith_short_8: XPDMQ7F3

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/XPDMQ7F3R3AUC7RVSY2HP6OFZN \
  | 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: bbc6c87cbb8ec1417e35963477f9c5cb61d9cb3c5d9423f0442b416a6f8185ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ab78f44b1fefaa0f8a3b56b4002fc5d58fb177a2440f3cc83ef5f5b6529d31f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-05-18T17:01:17Z",
    "title_canon_sha256": "cea8860f6b5d1466d319423fa528fa785189c46babbbc2b878e52f69e77e0c1a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.2934",
    "kind": "arxiv",
    "version": 1
  }
}