Pith Number

pith:BPR6WQ4J

pith:2018:BPR6WQ4JA2EJJ5ORQV34TJT5SZ

not attested not anchored not stored refs pending

Nitrogen fractionation in high-mass star-forming cores across the Galaxy

A. S\'anchez-Monge, F. Fontani, L. Colzi, L. Testi, M. T. Beltr\'an, P. Caselli, V. M. Rivilla

arxiv:1804.05717 v1 · 2018-04-16 · 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{BPR6WQ4JA2EJJ5ORQV34TJT5SZ}

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	2026-05-18T00:17:03.170028Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0be3eb4389068894f5d18577c9a67d964fd44b4bf39949b080113002d3049716

Aliases

arxiv: 1804.05717 · arxiv_version: 1804.05717v1 · doi: 10.48550/arxiv.1804.05717 · pith_short_12: BPR6WQ4JA2EJ · pith_short_16: BPR6WQ4JA2EJJ5OR · pith_short_8: BPR6WQ4J

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/BPR6WQ4JA2EJJ5ORQV34TJT5SZ \
  | 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: 0be3eb4389068894f5d18577c9a67d964fd44b4bf39949b080113002d3049716

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7effecac227dbb9935c72c0aa065a0bdf7936cb11c903a4ebb3a8afc1dfdaf1a",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-04-16T14:59:07Z",
    "title_canon_sha256": "6f317eee7a0906f11f40aba38162ddf795b6d84ea2f9c3557c8c85dce7c90aff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.05717",
    "kind": "arxiv",
    "version": 1
  }
}