Pith Number

pith:43BZYC6Y

pith:2012:43BZYC6YVGFFXOM4TQJWKHZN2T

not attested not anchored not stored refs pending

The Galactic R Coronae Borealis stars : the C2 Swan bands, the carbon problem, and the 12C/13C ratio

(2) The W.J. McDonald Observatory, Austin, Bangalore, B. P. Hema (1), David L. Lambert (2) ((1) Indian Institute of Astrophysics, Gajendra Pandey (1), India, Koramangala, University of Texas at Austin, USA)

arxiv:1201.1357 v1 · 2012-01-06 · 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{43BZYC6YVGFFXOM4TQJWKHZN2T}

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	2026-05-18T01:58:55.036021Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6c39c0bd8a98a5bb99c9c13651f2dd4eeb79f0d7209f630b5e6a87eff955a7c

Aliases

arxiv: 1201.1357 · arxiv_version: 1201.1357v1 · doi: 10.48550/arxiv.1201.1357 · pith_short_12: 43BZYC6YVGFF · pith_short_16: 43BZYC6YVGFFXOM4 · pith_short_8: 43BZYC6Y

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/43BZYC6YVGFFXOM4TQJWKHZN2T \
  | 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: e6c39c0bd8a98a5bb99c9c13651f2dd4eeb79f0d7209f630b5e6a87eff955a7c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cc25bacce8eb34a8278265f5b79ef59e09565a448bfea413d0a4f376557789b2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-01-06T07:03:37Z",
    "title_canon_sha256": "e0e1ac85daaf9e54919851398836fb8414d01dd5968d6d4b7fb693dd12a19bd5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.1357",
    "kind": "arxiv",
    "version": 1
  }
}