Pith Number

pith:NVKH26D2

pith:2015:NVKH26D2PHMU5UCJA2G2WCQTEE

not attested not anchored not stored refs pending

CAOS spectroscopy of Am stars Kepler targets

A. Frasca, F. Leone, G. Catanzaro, I. Busa', K. Biazzo, M. Giarrusso, M. Munari, S. Scuderi, V. Ripepi

arxiv:1504.07740 v1 · 2015-04-29 · 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{NVKH26D2PHMU5UCJA2G2WCQTEE}

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	2026-05-18T01:35:48.235829Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d547d787a79d94ed049068dab0a132108fd7b1d55b6e79110575d88bd782809

Aliases

arxiv: 1504.07740 · arxiv_version: 1504.07740v1 · doi: 10.48550/arxiv.1504.07740 · pith_short_12: NVKH26D2PHMU · pith_short_16: NVKH26D2PHMU5UCJ · pith_short_8: NVKH26D2

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/NVKH26D2PHMU5UCJA2G2WCQTEE \
  | 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: 6d547d787a79d94ed049068dab0a132108fd7b1d55b6e79110575d88bd782809

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5cad37d9828d24f20f42d054a70b2aaa8b3f2abd9de93e4791efb2c29b478a54",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-04-29T07:11:29Z",
    "title_canon_sha256": "06d9167a1684f53c300c465daba50938e61b8e683b05671fb81b6969d7c0c231"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.07740",
    "kind": "arxiv",
    "version": 1
  }
}