Pith Number

pith:42ZN6UTM

pith:2015:42ZN6UTMOMFLB3WIC47INXN4D7

not attested not anchored not stored refs pending

R Coronae Borealis Stars are Viable Factories of Pre-solar Grains

Amanda I. Karakas, Ashley J. Ruiter, Melanie Hampel

arxiv:1507.06367 v1 · 2015-07-23 · 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{42ZN6UTMOMFLB3WIC47INXN4D7}

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	2026-05-18T01:33:42.228013Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6b2df526c730ab0eec8173e86ddbc1fc1041fe11e93cda923c5ab4c6229cd1e

Aliases

arxiv: 1507.06367 · arxiv_version: 1507.06367v1 · doi: 10.48550/arxiv.1507.06367 · pith_short_12: 42ZN6UTMOMFL · pith_short_16: 42ZN6UTMOMFLB3WI · pith_short_8: 42ZN6UTM

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/42ZN6UTMOMFLB3WIC47INXN4D7 \
  | 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: e6b2df526c730ab0eec8173e86ddbc1fc1041fe11e93cda923c5ab4c6229cd1e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b283146f57a797105bc3c3a044899791e8d909025abbb5a220c0f173935878d1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-07-23T01:08:20Z",
    "title_canon_sha256": "ddbf5f033cfa14ffb9d87673688e1496d2784e56e850cfd7d93a7648e2cbcae3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.06367",
    "kind": "arxiv",
    "version": 1
  }
}