Pith Number

pith:2V7O7QPT

pith:2013:2V7O7QPTWXZJ5FVQLWYBOIU3ZG

not attested not anchored not stored refs pending

The CN/C15 N isotopic ratio towards dark clouds

Alexandre Faure (IPAG), G. Pineau Des For\^ets (LERMA, IAS), Marco Padovani (LERMA), Pierre Hily-Blant (IPAG), Romane Le Gal (IPAG)

arxiv:1308.4380 v1 · 2013-08-20 · 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{2V7O7QPTWXZJ5FVQLWYBOIU3ZG}

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	2026-05-18T03:15:32.986440Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d57eefc1f3b5f29e96b05db017229bc9900707b7d3db3d6545a7c23f8449ced6

Aliases

arxiv: 1308.4380 · arxiv_version: 1308.4380v1 · doi: 10.48550/arxiv.1308.4380 · pith_short_12: 2V7O7QPTWXZJ · pith_short_16: 2V7O7QPTWXZJ5FVQ · pith_short_8: 2V7O7QPT

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/2V7O7QPTWXZJ5FVQLWYBOIU3ZG \
  | 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: d57eefc1f3b5f29e96b05db017229bc9900707b7d3db3d6545a7c23f8449ced6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c599fa9fe2c6005c37419f21032ca32160ded21ba82de1f75a77b7b7c1dd64d5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-08-20T19:08:05Z",
    "title_canon_sha256": "cb74404efaf4c7fe5c9f54a46c937b542b58825ff81e46e80d2c85a5ec3e48e4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.4380",
    "kind": "arxiv",
    "version": 1
  }
}