Pith Number

pith:ISPD356V

pith:2017:ISPD356VIMUHYXUFNEIFEYM2EJ

not attested not anchored not stored refs pending

The N/O ratio in early B-type main sequence stars as an indicator of their evolution

L. S. Lyubimkov

arxiv:1701.06777 v1 · 2017-01-24 · 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{ISPD356VIMUHYXUFNEIFEYM2EJ}

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	2026-05-18T00:52:12.203605Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

449e3df7d543287c5e85691052619a22617036bc3241b89de62d75034a0cd7aa

Aliases

arxiv: 1701.06777 · arxiv_version: 1701.06777v1 · doi: 10.48550/arxiv.1701.06777 · pith_short_12: ISPD356VIMUH · pith_short_16: ISPD356VIMUHYXUF · pith_short_8: ISPD356V

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/ISPD356VIMUHYXUFNEIFEYM2EJ \
  | 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: 449e3df7d543287c5e85691052619a22617036bc3241b89de62d75034a0cd7aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f734a99cf1c50ad9183b547a9000a0485769684f94ecee9af26a4f5695db447a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-01-24T09:16:14Z",
    "title_canon_sha256": "876a003a2faf0273760d5f8288379797e98afd3e402d90b17b8c61cdbf2d7f08"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.06777",
    "kind": "arxiv",
    "version": 1
  }
}