Pith Number

pith:BUPZEZUD

pith:2018:BUPZEZUDPBBOTPR4OLVNI6VI7O

not attested not anchored not stored refs pending

The VLT-FLAMES Tarantula Survey: XXVIII. Nitrogen abundances for apparently single dwarf and giant B-type stars with small projected rotational velocities

A. de Koter, A. Thompson, C. J. Evans, C. M. McEvoy, D. J. Lennon, F.R.N. Schneider, H. Sana, J. S. Vink, N. Langer, O.H. Ram\'irez-Agudelo, P. A. Crowther, P.L. Dufton, R. Garland, S. E. de Mink, S. S\'imon D\'iaz, W. D. Taylor

arxiv:1804.02025 v1 · 2018-04-05 · 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{BUPZEZUDPBBOTPR4OLVNI6VI7O}

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	2026-05-18T00:09:53.635536Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d1f9266837842e9be3c72ead47aa8fb9d2b72555677572a74ef330497f2990f

Aliases

arxiv: 1804.02025 · arxiv_version: 1804.02025v1 · doi: 10.48550/arxiv.1804.02025 · pith_short_12: BUPZEZUDPBBO · pith_short_16: BUPZEZUDPBBOTPR4 · pith_short_8: BUPZEZUD

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/BUPZEZUDPBBOTPR4OLVNI6VI7O \
  | 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: 0d1f9266837842e9be3c72ead47aa8fb9d2b72555677572a74ef330497f2990f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cca17e4e4e28822d31a0e0ef9546073218477a6e070c32474b9741173d004321",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-04-05T19:01:07Z",
    "title_canon_sha256": "4535c5d9aeec4a0ac9b47697b45319d8ee31214c0a27ee7382e72fc3878c3949"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.02025",
    "kind": "arxiv",
    "version": 1
  }
}