Pith Number

pith:2KQHTUVY

pith:2014:2KQHTUVYFA64PJJYDD66472LSA

not attested not anchored not stored refs pending

Spiral arms in scattered light images of protoplanetary discs: Are they the signposts of planets?

Adriana Pohl, Attila Juhasz, Carsten Dominik, Cornelis Dullemond, Myriam Benisty, Sijme-Jan Paardekooper

arxiv:1412.3412 v2 · 2014-12-10 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2KQHTUVYFA64PJJYDD66472LSA}

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	2026-05-18T02:03:35.010201Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2a079d2b8283dc7a53818fdee7f4b90161051653f491c699260589ab7650ef3

Aliases

arxiv: 1412.3412 · arxiv_version: 1412.3412v2 · doi: 10.48550/arxiv.1412.3412 · pith_short_12: 2KQHTUVYFA64 · pith_short_16: 2KQHTUVYFA64PJJY · pith_short_8: 2KQHTUVY

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/2KQHTUVYFA64PJJYDD66472LSA \
  | 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: d2a079d2b8283dc7a53818fdee7f4b90161051653f491c699260589ab7650ef3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d7400192fe2e4b41a97184a5917f7d192e3e0caab3bd6280310e3e0b1ebf718e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2014-12-10T19:06:44Z",
    "title_canon_sha256": "29e2384f17109447251068e7e820d57f2677c5fa57050c78164822d56d3cadbc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.3412",
    "kind": "arxiv",
    "version": 2
  }
}