Pith Number

pith:OQM4KUIW

pith:2021:OQM4KUIWR27QVGWRAZNXLGRGTA

not attested not anchored not stored refs pending

Hydrogenation of accreting C-atoms and CO molecules -- simulating ketene and acetaldehyde formation under dark and translucent cloud conditions

Danna Qasim, Ewine F. van Dishoeck, Gleb Fedoseev, Harold Linnartz, Ko-Ju Chuang, Sergio Ioppolo, Thanja Lamberts

arxiv:2111.08548 v1 · 2021-11-16 · astro-ph.GA · 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{OQM4KUIWR27QVGWRAZNXLGRGTA}

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	2026-07-05T03:51:36.634858Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7419c551168ebf0a9ad1065b759a26983b10a87f2af3dafb882cbee0b43938d3

Aliases

arxiv: 2111.08548 · arxiv_version: 2111.08548v1 · doi: 10.48550/arxiv.2111.08548 · pith_short_12: OQM4KUIWR27Q · pith_short_16: OQM4KUIWR27QVGWR · pith_short_8: OQM4KUIW

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/OQM4KUIWR27QVGWRAZNXLGRGTA \
  | 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: 7419c551168ebf0a9ad1065b759a26983b10a87f2af3dafb882cbee0b43938d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "efd27a544016f6263425a710208081764c80a7ef3d0774e6f4eee71e3dbebc87",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-11-16T15:22:31Z",
    "title_canon_sha256": "25d5abe5026ff2f586cd1228603b68706506268d3e885eeb44d949b0b7d62b2d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.08548",
    "kind": "arxiv",
    "version": 1
  }
}