Pith Number

pith:XLSBJ44O

pith:2015:XLSBJ44OPD7C4D5IMKRCNSMUDB

not attested not anchored not stored refs pending

Simultaneous X-ray and optical spectroscopy of the Oef supergiant lambda Cep

A. Hempelmann, A. Herve, E. Gosset, G. Rauw, J.H.M.M. Schmitt, J.M. Uuh-Sonda, J.N. Gonzalez-Perez, K.-P. Schroeder, M. Mittag, P. Eenens, Y. Naze

arxiv:1505.07714 v1 · 2015-05-28 · 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{XLSBJ44OPD7C4D5IMKRCNSMUDB}

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	2026-05-18T01:35:54.331272Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bae414f38e78fe2e0fa862a226c9941865be5483b06ba77f4981ccc7250c3eff

Aliases

arxiv: 1505.07714 · arxiv_version: 1505.07714v1 · doi: 10.48550/arxiv.1505.07714 · pith_short_12: XLSBJ44OPD7C · pith_short_16: XLSBJ44OPD7C4D5I · pith_short_8: XLSBJ44O

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/XLSBJ44OPD7C4D5IMKRCNSMUDB \
  | 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: bae414f38e78fe2e0fa862a226c9941865be5483b06ba77f4981ccc7250c3eff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "632d04ca252cef0b8a5e330b893909902421d1954bef57c2ebce9b6678ca165c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-05-28T15:02:20Z",
    "title_canon_sha256": "696dce498e6bd3a927418320da0bf825a59f8a1297ca73ceca10c7030e943b3b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.07714",
    "kind": "arxiv",
    "version": 1
  }
}