Pith Number

pith:NEPQPXK7

pith:2010:NEPQPXK7RV57HKKZYNXODTP3TB

not attested not anchored not stored refs pending

Interstellar CN and CH+ in Diffuse Molecular Clouds: 12C/13C Ratios and CN Excitation

A. M. Ritchey, D. L. Lambert, S. R. Federman

arxiv:1012.1296 v1 · 2010-12-06 · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NEPQPXK7RV57HKKZYNXODTP3TB}

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	2026-05-18T02:23:15.041461Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

691f07dd5f8d7bf3a959c36ee1cdfb98437fe9e6372336452fbfb1405ab54144

Aliases

arxiv: 1012.1296 · arxiv_version: 1012.1296v1 · doi: 10.48550/arxiv.1012.1296 · pith_short_12: NEPQPXK7RV57 · pith_short_16: NEPQPXK7RV57HKKZ · pith_short_8: NEPQPXK7

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/NEPQPXK7RV57HKKZYNXODTP3TB \
  | 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: 691f07dd5f8d7bf3a959c36ee1cdfb98437fe9e6372336452fbfb1405ab54144

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "59fcb2eddfcd9beaa693a53a229e8237d2486dadde0f5c2334a98ec5fcc314d6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2010-12-06T19:52:39Z",
    "title_canon_sha256": "2681a7b3898029695ee1301d7a83b139a638514ab7a77e21cc31de817db13b43"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.1296",
    "kind": "arxiv",
    "version": 1
  }
}