Pith Number

pith:OZNY5AHQ

pith:2018:OZNY5AHQL5LE2GHKDXGLTKB2LW

not attested not anchored not stored refs pending

First Detection of the Simplest Organic Acid in a Protoplanetary Disk

Bertrand Lefloch, C\'ecile Favre, Cecilia Ceccarelli, Chunhua Qi, Claudio Codella, Davide Fedele, Dmitry Semenov, Edwige Chapillon, Edwin A. Bergin, Francesco Fontani, Franck Hersant, Geoffrey A. Blake, Kamber R. Schwarz, Leonardo Testi, L. Ilsedore Cleeves, Sergey Parfenov, Vianney Taquet

arxiv:1807.05768 v1 · 2018-07-16 · 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{OZNY5AHQL5LE2GHKDXGLTKB2LW}

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	2026-05-18T00:09:23.944414Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

765b8e80f05f564d18ea1dccb9a83a5db19ff8e9331425efe8857b608cdfe128

Aliases

arxiv: 1807.05768 · arxiv_version: 1807.05768v1 · doi: 10.48550/arxiv.1807.05768 · pith_short_12: OZNY5AHQL5LE · pith_short_16: OZNY5AHQL5LE2GHK · pith_short_8: OZNY5AHQ

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/OZNY5AHQL5LE2GHKDXGLTKB2LW \
  | 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: 765b8e80f05f564d18ea1dccb9a83a5db19ff8e9331425efe8857b608cdfe128

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "08cb586d0a5a8535e2ced9b7b776218e39b93d56f561b96ca6363bb34fa73f96",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-07-16T10:15:18Z",
    "title_canon_sha256": "cee321d659d28be209dbb2d8271f5e09914a767fd624f92e6b12d9a892a9d06f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.05768",
    "kind": "arxiv",
    "version": 1
  }
}