Pith Number

pith:FTSKHQF7

pith:2012:FTSKHQF7A6NFK2LWA5ZUR2S7E2

not attested not anchored not stored refs pending

Evidence for Multiple Pathways to Deuterium Enhancements in Protoplanetary Disks

Chunhua Qi, David J. Wilner, Karin I. Oberg, Michiel R. Hogerheijde

arxiv:1202.3992 v1 · 2012-02-17 · 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{FTSKHQF7A6NFK2LWA5ZUR2S7E2}

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	2026-05-18T01:58:24.000339Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ce4a3c0bf079a556976077348ea5f2693c4cb9151470b8a8374b27c6b850b7f

Aliases

arxiv: 1202.3992 · arxiv_version: 1202.3992v1 · doi: 10.48550/arxiv.1202.3992 · pith_short_12: FTSKHQF7A6NF · pith_short_16: FTSKHQF7A6NFK2LW · pith_short_8: FTSKHQF7

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/FTSKHQF7A6NFK2LWA5ZUR2S7E2 \
  | 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: 2ce4a3c0bf079a556976077348ea5f2693c4cb9151470b8a8374b27c6b850b7f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4dd8011221e45cb235c1bf02134d7f3e568095e1e1e37215ce55f613502a7536",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-02-17T18:58:26Z",
    "title_canon_sha256": "8c8d8b4691cd40f3d39a11bece0774a920dec063379f738f73ed09a6bed4c382"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.3992",
    "kind": "arxiv",
    "version": 1
  }
}