Pith Number

pith:CWPYGQKE

pith:2018:CWPYGQKEMHD3LDUMKT4GOM2MIE

not attested not anchored not stored refs pending

The ALMA-PILS survey: The first detection of doubly-deuterated methyl formate (CHD2OCHO) in the ISM

A. Coutens, H. Calcutt, H. S. P. M\"uller, J. K. J{\o}rgensen, L. E. Kristensen, M. H. D. van der Wiel, M. N. Drozdovskaya, N. F. W. Ligterink, S. F. Wampfler, S. Manigand, T. L. Bourke, V. Taquet

arxiv:1811.09102 v1 · 2018-11-22 · astro-ph.SR · 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{CWPYGQKEMHD3LDUMKT4GOM2MIE}

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	2026-05-17T23:51:30.795895Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

159f83414461c7b58e8c54f867334c411f8bfc75e26d1bee594d24d0c2d2212a

Aliases

arxiv: 1811.09102 · arxiv_version: 1811.09102v1 · doi: 10.48550/arxiv.1811.09102 · pith_short_12: CWPYGQKEMHD3 · pith_short_16: CWPYGQKEMHD3LDUM · pith_short_8: CWPYGQKE

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/CWPYGQKEMHD3LDUMKT4GOM2MIE \
  | 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: 159f83414461c7b58e8c54f867334c411f8bfc75e26d1bee594d24d0c2d2212a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ffb7647b8b3780ebce606680a9dad07788c217f09abe742a1b98dc7df5015392",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-11-22T10:50:11Z",
    "title_canon_sha256": "0b9901619de840b84179ac4db5741f70eb2d1aa7c132ccf722c3f45b8dd2acf7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.09102",
    "kind": "arxiv",
    "version": 1
  }
}