Pith Number

pith:FQRDJ7SN

pith:2017:FQRDJ7SNU5LJMLZW6QPVK4OCZT

not attested not anchored not stored refs pending

Exploring the 13CO/C18O abundance ratio towards Galactic young stellar objects and HII regions

M. B. Areal, M. Ortega, Pe\~na M. Celis, S. Paron

arxiv:1712.09578 v1 · 2017-12-27 · 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{FQRDJ7SNU5LJMLZW6QPVK4OCZT}

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	2026-05-18T00:15:58.179808Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c2234fe4da756962f36f41f5571c2ccc67c4c9132eef079bcd632905756e524

Aliases

arxiv: 1712.09578 · arxiv_version: 1712.09578v1 · doi: 10.48550/arxiv.1712.09578 · pith_short_12: FQRDJ7SNU5LJ · pith_short_16: FQRDJ7SNU5LJMLZW · pith_short_8: FQRDJ7SN

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/FQRDJ7SNU5LJMLZW6QPVK4OCZT \
  | 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: 2c2234fe4da756962f36f41f5571c2ccc67c4c9132eef079bcd632905756e524

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ab250fb2d5c5f74a663e044b758a50e741066ae75fe2a06641cff2199515167",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-12-27T13:24:37Z",
    "title_canon_sha256": "1990e02986b936657a81d46ddfd1045d779c102957f8853ee1a7141d63f8cfd5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.09578",
    "kind": "arxiv",
    "version": 1
  }
}