Pith Number

pith:X4B2XLUD

pith:2018:X4B2XLUDKOHNX4VVQEKJIJQMTK

not attested not anchored not stored refs pending

Discovery of the elusive radical NCO and confirmation of H2NCO+ in space

E. Roueff, J. Cernicharo, M. Agundez, M. Tafalla, N. Marcelino

arxiv:1804.05617 v1 · 2018-04-16 · 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{X4B2XLUDKOHNX4VVQEKJIJQMTK}

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	2026-05-18T00:15:54.721230Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bf03abae83538edbf2b5811494260c9a810d59cec0a7806fe01d6c4f4a358027

Aliases

arxiv: 1804.05617 · arxiv_version: 1804.05617v1 · doi: 10.48550/arxiv.1804.05617 · pith_short_12: X4B2XLUDKOHN · pith_short_16: X4B2XLUDKOHNX4VV · pith_short_8: X4B2XLUD

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/X4B2XLUDKOHNX4VVQEKJIJQMTK \
  | 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: bf03abae83538edbf2b5811494260c9a810d59cec0a7806fe01d6c4f4a358027

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e2e5b674ed38091ea474964fd17a6693de0d6a1fbb8bcfad2c177e5f3b4682bc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-04-16T11:40:31Z",
    "title_canon_sha256": "d7af568bc262ecb15c37de91f2bcb3f27d7dd75f03cd614157f5a3531683b1cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.05617",
    "kind": "arxiv",
    "version": 1
  }
}