Pith Number

pith:CQU24YTG

pith:2012:CQU24YTGXONP2TX5EK4BBEFIXL

not attested not anchored not stored refs pending

From Prestellar to Protostellar Cores II. Time Dependence and Deuterium Fractionation

Eric Herbst, Franck Hersant, Robin T. Garrod, Valentine Wakelam, Yuri Aikawa

arxiv:1210.2476 v2 · 2012-10-09 · 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{CQU24YTGXONP2TX5EK4BBEFIXL}

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	2026-05-18T01:54:04.298096Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1429ae6266bb9afd4efd22b81090a8badaa913449f10e217bd7cd71e9bfa8d15

Aliases

arxiv: 1210.2476 · arxiv_version: 1210.2476v2 · doi: 10.48550/arxiv.1210.2476 · pith_short_12: CQU24YTGXONP · pith_short_16: CQU24YTGXONP2TX5 · pith_short_8: CQU24YTG

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/CQU24YTGXONP2TX5EK4BBEFIXL \
  | 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: 1429ae6266bb9afd4efd22b81090a8badaa913449f10e217bd7cd71e9bfa8d15

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2904db9120115c12dfe4f62ad64aa96b406580af9b4189cf6365ac206e3bd6c9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-10-09T03:27:42Z",
    "title_canon_sha256": "5a29efd221cec3a6c80330fcc36307af6e73f3f7f174e5d78b5e4b40e37b33f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.2476",
    "kind": "arxiv",
    "version": 2
  }
}