Pith Number

pith:CLNP6R7E

pith:2013:CLNP6R7EFQCJ4ABMUTUVWESBXX

not attested not anchored not stored refs pending

The CH(G) Index as a New Criterion for Selecting Red Giant Stars

G. Zhao, J. K. Zhao, K. Carrell, K. F. Tan, Y. Q. Chen

arxiv:1303.4819 v1 · 2013-03-20 · 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{CLNP6R7EFQCJ4ABMUTUVWESBXX}

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	2026-05-18T01:51:00.463114Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

12daff47e42c049e002ca4e95b1241bdceeaf4a509adb44e7cd7f02250121950

Aliases

arxiv: 1303.4819 · arxiv_version: 1303.4819v1 · doi: 10.48550/arxiv.1303.4819 · pith_short_12: CLNP6R7EFQCJ · pith_short_16: CLNP6R7EFQCJ4ABM · pith_short_8: CLNP6R7E

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/CLNP6R7EFQCJ4ABMUTUVWESBXX \
  | 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: 12daff47e42c049e002ca4e95b1241bdceeaf4a509adb44e7cd7f02250121950

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aadee845e969b329d110c399ab55864cbdb924412676d8a50304b88fc9813282",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-03-20T03:03:46Z",
    "title_canon_sha256": "1bdba70df7884b05f127766785bc5caaa3aaac20af4fc525d3bcdf050f7d4594"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.4819",
    "kind": "arxiv",
    "version": 1
  }
}