Pith Number

pith:QRKE7DZT

pith:2010:QRKE7DZTDVYOTQZTCCVUO5FEWB

not attested not anchored not stored refs pending

Nitrogen Isotopic Fractionation in Interstellar Ammonia

A. Wootten, D. C. Lis, E. Roueff, M. Gerin

arxiv:1001.0744 v1 · 2010-01-05 · 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{QRKE7DZTDVYOTQZTCCVUO5FEWB}

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	2026-05-18T02:10:04.821417Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84544f8f331d70e9c33310ab4774a4b066c918e7d949574860edb605b5dda828

Aliases

arxiv: 1001.0744 · arxiv_version: 1001.0744v1 · doi: 10.48550/arxiv.1001.0744 · pith_short_12: QRKE7DZTDVYO · pith_short_16: QRKE7DZTDVYOTQZT · pith_short_8: QRKE7DZT

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/QRKE7DZTDVYOTQZTCCVUO5FEWB \
  | 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: 84544f8f331d70e9c33310ab4774a4b066c918e7d949574860edb605b5dda828

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a471e0e0dcac5381e87005de70f4bc06070ec5f22c0fd89f8cd145a8f893f1db",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2010-01-05T18:47:45Z",
    "title_canon_sha256": "54ff9d6910c291e57ac0a6255796493776553df9b89f03c0bdeb3a6e9f6861d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.0744",
    "kind": "arxiv",
    "version": 1
  }
}