Pith Number

pith:UPSLZCEC

pith:2019:UPSLZCECS6EXMNFN6WHDRZ4NJH

not attested not anchored not stored refs pending

The role of C/O in nitrile astrochemistry in PDRs and planet-forming disks

Evelyne Roueff, Franck Le Petit, Karin I. \"Oberg, Madison T. Brady, Romane Le Gal

arxiv:1910.01554 v1 · 2019-10-03 · astro-ph.EP · 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{UPSLZCECS6EXMNFN6WHDRZ4NJH}

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	2026-07-05T00:31:21.891235Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3e4bc888297897634adf58e38e78d49eeff547367dc21c9f03e616324e98b85

Aliases

arxiv: 1910.01554 · arxiv_version: 1910.01554v1 · doi: 10.48550/arxiv.1910.01554 · pith_short_12: UPSLZCECS6EX · pith_short_16: UPSLZCECS6EXMNFN · pith_short_8: UPSLZCEC

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/UPSLZCECS6EXMNFN6WHDRZ4NJH \
  | 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: a3e4bc888297897634adf58e38e78d49eeff547367dc21c9f03e616324e98b85

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c56b4962eb9f7699d6ab8d3a595c34c113972ecb41663ebd4b8dba35bbe5bc38",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2019-10-03T15:35:01Z",
    "title_canon_sha256": "3aac84d9b81cab5c3488957a6a040d6ecea87611dd73a08f6c4e1bdcf823ab7c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.01554",
    "kind": "arxiv",
    "version": 1
  }
}