Pith Number

pith:2AGJVDBW

pith:2013:2AGJVDBWJCTX35CQFOPAFPH3ME

not attested not anchored not stored refs pending

An analysis of the deuterium fractionation of star-forming cores in the Perseus molecular cloud

Helen Kirk, Rachel Friesen, Yancy Shirley

arxiv:1301.1875 v1 · 2013-01-09 · 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{2AGJVDBWJCTX35CQFOPAFPH3ME}

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	2026-05-18T01:52:14.418427Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d00c9a8c3648a77df4502b9e02bcfb612b4edf50bd320dc531c7a75fbdf89c85

Aliases

arxiv: 1301.1875 · arxiv_version: 1301.1875v1 · doi: 10.48550/arxiv.1301.1875 · pith_short_12: 2AGJVDBWJCTX · pith_short_16: 2AGJVDBWJCTX35CQ · pith_short_8: 2AGJVDBW

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/2AGJVDBWJCTX35CQFOPAFPH3ME \
  | 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: d00c9a8c3648a77df4502b9e02bcfb612b4edf50bd320dc531c7a75fbdf89c85

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b161db1d35a836e3efd0c5dc009f5cdb3992a9bfd85105b458e88c4263b2ba5",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-01-09T14:54:06Z",
    "title_canon_sha256": "b6f74209836316dbc90125fcdb6cba568edf5b11965a49d5e45b66007113416c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.1875",
    "kind": "arxiv",
    "version": 1
  }
}