Pith Number

pith:KCNVN5SC

pith:2013:KCNVN5SCTWNVBGREDOVGUSEOF7

not attested not anchored not stored refs pending

Zooming in on the Formation of Protoplanetary Disks

2), 2) (Niels Bohr Institute, A. Nordlund (1, A. Vasileiades (1, Centre for Star, ICC, ICREA, M. Kuffmeier (1, Planet Formation, P. Padoan (3), T. Haugboelle (2), Univ. of Barcelona (3)), Univ. of Copenhagen (1), Univ. of Copenhagen (2)

arxiv:1309.2278 v2 · 2013-09-09 · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KCNVN5SCTWNVBGREDOVGUSEOF7}

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	2026-05-18T03:13:09.577429Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

509b56f6429d9b509a241baa6a488e2fc18ee3dac0211142dca4bd6a6f32a31f

Aliases

arxiv: 1309.2278 · arxiv_version: 1309.2278v2 · doi: 10.48550/arxiv.1309.2278 · pith_short_12: KCNVN5SCTWNV · pith_short_16: KCNVN5SCTWNVBGRE · pith_short_8: KCNVN5SC

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/KCNVN5SCTWNVBGREDOVGUSEOF7 \
  | 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: 509b56f6429d9b509a241baa6a488e2fc18ee3dac0211142dca4bd6a6f32a31f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be57ffcbced50ae1eda79a648492039f556f613221c7225822835c3f03e3bd47",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-09-09T19:58:39Z",
    "title_canon_sha256": "fe2718b5502af4a962ac30b1272c8186cec1d5ec7e4144afbe79b070a800bca6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.2278",
    "kind": "arxiv",
    "version": 2
  }
}