Pith Number

pith:NCHXJHD4

pith:2007:NCHXJHD4L4NY7MJBNMI6IA4JBK

not attested not anchored not stored refs pending

The VLT-FLAMES survey of massive stars: rotation and nitrogen enrichment as the key to understanding massive star evolution

A. de Koter, C.J. Evans, C. Trundle, D.J. Lennon, I. Brott, I. Hunter, N. Langer, P.L. Dufton, R.S.I. Ryans, S.J. Smartt

arxiv:0711.2267 v2 · 2007-11-14 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NCHXJHD4L4NY7MJBNMI6IA4JBK}

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.

Cited by

1 paper in Pith

Basic stellar observables

Receipt and verification

First computed	2026-07-04T17:06:41.190947Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

688f749c7c5f1b8fb1216b11e403890a9a3307441797e37a73373abcbe1b0a91

Aliases

arxiv: 0711.2267 · arxiv_version: 0711.2267v2 · doi: 10.48550/arxiv.0711.2267 · pith_short_12: NCHXJHD4L4NY · pith_short_16: NCHXJHD4L4NY7MJB · pith_short_8: NCHXJHD4

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/NCHXJHD4L4NY7MJBNMI6IA4JBK \
  | 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: 688f749c7c5f1b8fb1216b11e403890a9a3307441797e37a73373abcbe1b0a91

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21f5d94811c2b9388c2ba59b735c16eb777d8aa7040590ad7aa0fa12f901adc5",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-11-14T18:23:47Z",
    "title_canon_sha256": "5eb25b5170e09e663ee6ff0f1bca1da023e2d2ecc1ee3c324540fb8fe6e49beb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0711.2267",
    "kind": "arxiv",
    "version": 2
  }
}