Pith Number

pith:D2LL6CEM

pith:2017:D2LL6CEMSLRLKYPB25JLXYERMU

not attested not anchored not stored refs pending

The IACOB project. V. Spectroscopic parameters of the O-type stars in the modern grid of standards for spectral classification

2), 9), A. Herrero (1, C. Sab\'in-Sanjuli\'an (3, G. Holgado (1, I. Negueruela (8), J. Ma\'iz Apell\'aniz (7), J. Puls (4), M. Garcia (6), N. Castro (5), R.H.Barb\'a (3), S. Sim\'on-D\'iaz (1

arxiv:1711.10043 v2 · 2017-11-27 · 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{D2LL6CEMSLRLKYPB25JLXYERMU}

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	2026-05-18T00:14:06.549495Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e96bf088c92e2b561e1d752bbe091652bdf2852d3202cc7c1bb4f25d34f8ca9

Aliases

arxiv: 1711.10043 · arxiv_version: 1711.10043v2 · doi: 10.48550/arxiv.1711.10043 · pith_short_12: D2LL6CEMSLRL · pith_short_16: D2LL6CEMSLRLKYPB · pith_short_8: D2LL6CEM

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/D2LL6CEMSLRLKYPB25JLXYERMU \
  | 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: 1e96bf088c92e2b561e1d752bbe091652bdf2852d3202cc7c1bb4f25d34f8ca9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "becc5b3b27b063f49c6022b869fbfe2f8c88bd73f2c6590ed697c5084943885e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-11-27T23:36:42Z",
    "title_canon_sha256": "d5025888b241efd9e3436e35d85959e90a8ef161c4720cdb150234b3932d2666"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.10043",
    "kind": "arxiv",
    "version": 2
  }
}