Pith Number

pith:JBIJNXRW

pith:2011:JBIJNXRWDJ4NFWZIGDD27GVTCY

not attested not anchored not stored refs pending

Double white dwarf mergers and elemental surface abundances in extreme helium and R Coronae Borealis stars

Amanda I. Karakas, C. Simon Jeffery, Hideyuki Saio

arxiv:1103.1556 v1 · 2011-03-08 · 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{JBIJNXRWDJ4NFWZIGDD27GVTCY}

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	2026-05-18T02:02:56.400421Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

485096de361a78d2db2830c7af9ab3162d9959ba37e02e6229aeafdc5cae3852

Aliases

arxiv: 1103.1556 · arxiv_version: 1103.1556v1 · doi: 10.48550/arxiv.1103.1556 · pith_short_12: JBIJNXRWDJ4N · pith_short_16: JBIJNXRWDJ4NFWZI · pith_short_8: JBIJNXRW

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/JBIJNXRWDJ4NFWZIGDD27GVTCY \
  | 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: 485096de361a78d2db2830c7af9ab3162d9959ba37e02e6229aeafdc5cae3852

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "53bb01001546e812732c23330c26bc8706b5633a1157fc727bb62cfac768313e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-03-08T15:15:18Z",
    "title_canon_sha256": "b6271683686d35c772f8d8e548e960dd24b0cede7f6ce13835b565f420db4eea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.1556",
    "kind": "arxiv",
    "version": 1
  }
}