Pith Number

pith:3SKOBO3E

pith:2015:3SKOBO3EVB5RT737P5DVO55OBO

not attested not anchored not stored refs pending

Quantitative spectral analysis of the sdB star HD 188112: a helium-core white dwarf progenitor

A. Irrgang, F. K. Roepke, M. Fink, M. Kromer, M. Latour, S. Geier, S. Taubenberger, U. Heber, V. Schaffenroth, W. Hillebrandt

arxiv:1511.04325 v2 · 2015-11-13 · 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{3SKOBO3EVB5RT737P5DVO55OBO}

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	2026-05-18T01:23:22.615968Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dc94e0bb64a87b19ff7f7f475777ae0ba4f92e935d15fb551c9357f2ad5aeead

Aliases

arxiv: 1511.04325 · arxiv_version: 1511.04325v2 · doi: 10.48550/arxiv.1511.04325 · pith_short_12: 3SKOBO3EVB5R · pith_short_16: 3SKOBO3EVB5RT737 · pith_short_8: 3SKOBO3E

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/3SKOBO3EVB5RT737P5DVO55OBO \
  | 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: dc94e0bb64a87b19ff7f7f475777ae0ba4f92e935d15fb551c9357f2ad5aeead

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7aef87b5143d659771546887843ce9716b41ba0f7f76f67cdfaf5b3cfcc187d4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-11-13T15:42:52Z",
    "title_canon_sha256": "4473cad81167d949e21fe6773a3971244b42eaa9eb31317bb6ccabcf8d91ccf3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.04325",
    "kind": "arxiv",
    "version": 2
  }
}