Pith Number

pith:K4OAI6U3

pith:2019:K4OAI6U3N65LGDKH6PAWEXFZZG

not attested not anchored not stored refs pending

Discovery of the first Ca-bearing molecule in space: CaNC

C. Berm\'udez, C. Cabezas, G. Quintana-Lacaci, J. Cernicharo, J. P. Fonfr\'ia, J. R. Pardo, L. Velilla-Prieto, M. Ag\'undez, M. Gu\'elin

arxiv:1906.09352 v1 · 2019-06-21 · astro-ph.SR · astro-ph.GA · physics.chem-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{K4OAI6U3N65LGDKH6PAWEXFZZG}

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	2026-05-17T23:41:07.528925Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

571c047a9b6fbab30d47f3c1625cb9c995d56864f81126ae11976d1cef8fffc8

Aliases

arxiv: 1906.09352 · arxiv_version: 1906.09352v1 · doi: 10.48550/arxiv.1906.09352 · pith_short_12: K4OAI6U3N65L · pith_short_16: K4OAI6U3N65LGDKH · pith_short_8: K4OAI6U3

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/K4OAI6U3N65LGDKH6PAWEXFZZG \
  | 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: 571c047a9b6fbab30d47f3c1625cb9c995d56864f81126ae11976d1cef8fffc8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc7fc095af31ffa1c7b8630d8ab0d6090da51e69be08f41ae5986046917f8c22",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "physics.chem-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-06-21T23:30:11Z",
    "title_canon_sha256": "cdac0c81bf838ff488462f1775bd4daefdc87e5656f729cc67caa147d6fb85a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.09352",
    "kind": "arxiv",
    "version": 1
  }
}