Pith Number

pith:DBR6JLIG

pith:2014:DBR6JLIGFQMXLX75WCHH5K47N7

not attested not anchored not stored refs pending

The VLT-FLAMES Tarantula Survey XIX. B-type Supergiants - Atmospheric parameters and nitrogen abundances to investigate the role of binarity and the width of the main sequence

A. de Koter, A. Herrero, C. J. Evans, C. M. McEvoy, D. J. Lennon, F. Najarro, F. R. N. Schneider, H. Sana, J. Ma\'iz Apell\'aniz, J. Puls, J. S. Vink, N. Langer, N. Markova, N. R. Walborn, P. A. Crowther, P. L. Dufton, P. R. Dunstall, S. E. de Mink, S. Sim\'on-D\'iaz, V. H\'enault-Brunet, V. M. Kalari, W. D. Taylor

arxiv:1412.2705 v2 · 2014-12-08 · 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{DBR6JLIGFQMXLX75WCHH5K47N7}

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	2026-05-18T02:26:31.312773Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1863e4ad062c1975dffdb08e7eab9f6ff9c2829146578bf79fcb979e1fd6818a

Aliases

arxiv: 1412.2705 · arxiv_version: 1412.2705v2 · doi: 10.48550/arxiv.1412.2705 · pith_short_12: DBR6JLIGFQMX · pith_short_16: DBR6JLIGFQMXLX75 · pith_short_8: DBR6JLIG

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/DBR6JLIGFQMXLX75WCHH5K47N7 \
  | 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: 1863e4ad062c1975dffdb08e7eab9f6ff9c2829146578bf79fcb979e1fd6818a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6cb2095a7a41693caeaa3596aa2ad4283bf058f5cce1b3f553010bdc6f6ee94a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-12-08T19:10:44Z",
    "title_canon_sha256": "3e30aab342db5c2f8813d68140b1f6fc73390339e85222d7a1371bdd027d308a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.2705",
    "kind": "arxiv",
    "version": 2
  }
}